• May include: A red ring featuring a white spiral design on its circular face. A light green arrow points from the text GLOW IN THE DARK toward the ring, indicating that the accessory has luminescent properties visible in low light conditions.
  • May include: A ring featuring a circular face with a glowing green spiral pattern against a dark background. The text GLOWS IN THE DARK is printed in green above the ring. The band and the outer edge of the ring face are a dark red color.
  • May include: A circular red ring featuring a white spiral pattern on its face. The text GLOWS IN THE DARK is displayed in a green starburst graphic. An inset shows the ring emitting a bright green light in the shape of a spiral in the dark.
  • May include: A collection of red and white spiral rings, one of which is inside a round metal tin. The tin lid features an engraved spiral design and the text: BEWARE! THIS RING IS PROPERTY OF OLIVER. The rings have a red base and white center.
  • May include: Two circular red and white peppermint candy-shaped stud earrings. Each earring features a raised white spiral pattern centered on a textured red background. The earrings are positioned in front of a green and yellow sign with white text.
  • May include: Two red 3D-printed rings with an open-top design. The left ring features the embossed text HYPNO, while the right ring features the embossed text RING. Both items have a textured, layered surface finish consistent with additive manufacturing.
  • May include: A circular ring featuring a vibrant red outer rim and a contrasting white spiral design on the face. The ring is constructed with a smooth, rounded surface and a simple band that fits around the finger, showcasing a bold, graphic pattern.
  • May include: A circular ring featuring a vibrant red outer border and a contrasting white spiral design in the center. The ring is displayed resting inside a small, square white gift box that contains a black velvet-like insert for presentation.
  • May include: A 3D-printed red ring featuring the embossed text HYPNO on the outer band. The ring has a cylindrical shape with a hollow center and a white circular insert visible inside the top opening, showcasing a layered texture from the printing process.
  • May include: A circular ring featuring a vibrant red outer rim and a white spiral pattern centered on the face. The design is flat and geometric, with a textured edge around the circumference of the red circular top piece of the ring.
  • May include: A bright red ring featuring a prominent white spiral pattern on its circular face. The design is set against a dynamic comic book style background with blue and red halftone dot patterns and a white starburst shape behind the ring.
  • May include: A red ring featuring a white spiral design on its circular face. A light green arrow points from the text GLOW IN THE DARK toward the ring, indicating that the accessory has luminescent properties visible in low light conditions.
  • Product video
  • Product video
  • May include: A ring featuring a circular face with a glowing green spiral pattern against a dark background. The text GLOWS IN THE DARK is printed in green above the ring. The band and the outer edge of the ring face are a dark red color.
  • May include: A circular red ring featuring a white spiral pattern on its face. The text GLOWS IN THE DARK is displayed in a green starburst graphic. An inset shows the ring emitting a bright green light in the shape of a spiral in the dark.
  • May include: A collection of red and white spiral rings, one of which is inside a round metal tin. The tin lid features an engraved spiral design and the text: BEWARE! THIS RING IS PROPERTY OF OLIVER. The rings have a red base and white center.
  • May include: Two circular red and white peppermint candy-shaped stud earrings. Each earring features a raised white spiral pattern centered on a textured red background. The earrings are positioned in front of a green and yellow sign with white text.
  • May include: Two red 3D-printed rings with an open-top design. The left ring features the embossed text HYPNO, while the right ring features the embossed text RING. Both items have a textured, layered surface finish consistent with additive manufacturing.
  • May include: A circular ring featuring a vibrant red outer rim and a contrasting white spiral design on the face. The ring is constructed with a smooth, rounded surface and a simple band that fits around the finger, showcasing a bold, graphic pattern.
  • May include: A circular ring featuring a vibrant red outer border and a contrasting white spiral design in the center. The ring is displayed resting inside a small, square white gift box that contains a black velvet-like insert for presentation.
  • May include: A 3D-printed red ring featuring the embossed text HYPNO on the outer band. The ring has a cylindrical shape with a hollow center and a white circular insert visible inside the top opening, showcasing a layered texture from the printing process.
  • May include: A circular ring featuring a vibrant red outer rim and a white spiral pattern centered on the face. The design is flat and geometric, with a textured edge around the circumference of the red circular top piece of the ring.
  • May include: A bright red ring featuring a prominent white spiral pattern on its circular face. The design is set against a dynamic comic book style background with blue and red halftone dot patterns and a white starburst shape behind the ring.
View buyer photos
Report this item to Etsy

Captain Underpants Hypnoring Ring. Glows in the dark.

KeyCharmStore  

Item highlights

  • Materials: Plastic, PLA

Seller's description

Translated by Google
See in original language
Translate to English
Sorry, we could not translate this listing to English.

✨ Bring the magic of Captain Underpants to life with this amazing Hypno Ring! Based on the famous book series, this ring was created to hypnotize, just like in the stories! Made with high-quality, glow-in-the-dark materials, it will light up your nighttime adventures, adding extra excitement.

🚀 Ideal for little adventurers who dream of being their favorite heroes. Whether as a fun gift or a play accessory, this Hypno Ring guarantees hours of entertainment and fun.

📐 Available in 3 different sizes:

Small (for children aged 3 to 5 years)

Medium (for children aged 6 to 14)

Large (for ages 14 and up)


🌟 Key Features:

Hypno Ring inspired by the Captain Underpants series.

Its spiral glows brightly in the dark, made of luminous material.

Available in various sizes for a perfect fit.

Red design with a white spiral that glows in the dark.

Ideal for costumes or as a toy for imaginative play.

Made from PLA, a sustainable and environmentally safe material.

🎁 A perfect gift for birthdays and special occasions that any fan will love!

Version with custom metal case:
https://www.etsy.com/listing/4570179494/captain-underpants-hypno-ring-glows-in

Legal Notice: This product is not affiliated with or sponsored by the original creators of the Captain Underpants book series or any copyright-related entity. It is a freely inspired item intended for recreational purposes only.

View more

Item review

Why this review appears

All reviews are from verified buyers. This review is shown automatically based on factors like recency, whether it includes comments, your chosen language, and whether the rating reflects the typical experience with the shop.

Summarized by AI

Fast shipping Love it Perfect gift Helpful seller Great quality As described

“My order arrived pretty quickly from Spain to Australia! It's exactly what was advertised and I can't wait to gift it to my son. Thank you!”

Astrid

Aug 31, 2026

View all

12 views in the last 24 hours

Price:$8.61+

Original Price: $11.48+

25% off

•

Limited time sale

See in original language
Translate to English

Please select an option

See in original language
Translate to English

Please select an option

You can only make an offer when buying a single item

Shipping & return policies

Sorry, this item doesn’t ship to United States. Contact the shop to find out about available shipping options.

Reviews for this item

What buyers say, summarized by AI: Fast shipping Love it Perfect gift Helpful seller Great quality As described

4.8

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(44 reviews)

4.9 Item quality
4.9 Shipping
5.0 Customer service
97% Buyers recommend
Filter by category
5 out of 5 stars 5 This item

I Nov 9, 2026

The seller quickly resolved a problem with the shipment, even though it was outside its control. The Hypnoring looks great, my son will love this present

I Nov 9, 2026

Response from Alvaro

Thank you 🫶

5 out of 5 stars 5 This item

Bernadette Oct 3, 2026

Fabulous quality and customer service. I had to change the order and Alvaro responded immediately with great help. The products arrived swiftly and they are superb quality.

Bernadette Oct 3, 2026

Response from Alvaro

Me alegro mucho de que te guste, gracias!!! 🫶

5 out of 5 stars 5 This item

Astrid Aug 31, 2026

My order arrived pretty quickly from Spain to Australia! It's exactly what was advertised and I can't wait to gift it to my son. Thank you!

Astrid Aug 31, 2026

Response from Alvaro

Gracias Astrid!! Me alegro mucho de que te guste 🫶 Por cierto, te queda genial 😜

5 out of 5 stars 5 This item

Sonia Apr 7, 2026

Fab gift, arrived on time

Sonia Apr 7, 2026

Response from Alvaro

Gracias Sonia! Me alegro de que te guste 🫶

Photos from reviews

Seller's description

Specifications

May include: A red ring featuring a white spiral design on its circular face. A light green arrow points from the text GLOW IN THE DARK toward the ring, indicating that the accessory has luminescent properties visible in low light conditions.
Translated by Google
See in original language
Translate to English
Sorry, we could not translate this listing to English.

✨ Bring the magic of Captain Underpants to life with this amazing Hypno Ring! Based on the famous book series, this ring was created to hypnotize, just like in the stories! Made with high-quality, glow-in-the-dark materials, it will light up your nighttime adventures, adding extra excitement.

🚀 Ideal for little adventurers who dream of being their favorite heroes. Whether as a fun gift or a play accessory, this Hypno Ring guarantees hours of entertainment and fun.

📐 Available in 3 different sizes:

Small (for children aged 3 to 5 years)

Medium (for children aged 6 to 14)

Large (for ages 14 and up)


🌟 Key Features:

Hypno Ring inspired by the Captain Underpants series.

Its spiral glows brightly in the dark, made of luminous material.

Available in various sizes for a perfect fit.

Red design with a white spiral that glows in the dark.

Ideal for costumes or as a toy for imaginative play.

Made from PLA, a sustainable and environmentally safe material.

🎁 A perfect gift for birthdays and special occasions that any fan will love!

Version with custom metal case:
https://www.etsy.com/listing/4570179494/captain-underpants-hypno-ring-glows-in

Legal Notice: This product is not affiliated with or sponsored by the original creators of the Captain Underpants book series or any copyright-related entity. It is a freely inspired item intended for recreational purposes only.

Delivery details and policies

  • Returns and exchanges
    Accepted within 30 days
  • Ships from
    Spain
  • Cost to ship

    Sorry, this item doesn’t ship to United States. Contact the shop to find out about available shipping options.

    There was a problem calculating your shipping. Please try again.

Shop with confidence
Star Seller

This seller consistently earned 5-star reviews, shipped orders on time, and replied quickly to messages.

Etsy Purchase Protection

If something goes wrong with an order, we've got your back on all eligible purchases. View program terms

Climate investments

Etsy supports climate solutions, from electric delivery trucks to carbon offsets for every delivery. View how

Meet your seller

KeyCharmStore
Alvaro
KeyCharmStore ·

Spain

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
1.2k sales
·
2 years on Etsy

Usually responds in a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

KeyCharmStore recommends this bundle

Bundle price: $56.26

View more items
May include: A red ring featuring a white spiral design on its circular face. A light green arrow points from the text GLOW IN THE DARK toward the ring, indicating that the accessory has luminescent properties visible in low light conditions. This listing

Captain Underpants Hypnoring Ring. Glows in the dark.

Sale Price $8.61

Original Price $11.48 (25% off)

Custom Captain Underpants Lamp – Personalized Room Decor with Name and Optional Light

Custom Captain Underpants Lamp – Personalized Room Decor with Name and Optional Light

Sale Price $34.70

Original Price $46.27 (25% off)

May include: Three red-handled coffee mugs and several cards featuring a cartoon character in a diaper and cape. The mugs have a red interior and the words "YOUR NAME" printed on them. The cards also have the words "YOUR NAME".

Personalized Captain Underpants Mug with Name - Fun Gift for Kids - 6 Designs - Ceramic

Sale Price $12.95

Original Price $17.28 (25% off)

May include: A red ring featuring a white spiral design on its circular face. A light green arrow points from the text GLOW IN THE DARK toward the ring, indicating that the accessory has luminescent properties visible in low light conditions. This listing

Captain Underpants Hypnoring Ring. Glows in the dark.

Sale Price $8.61

Original Price $11.48 (25% off)

Custom Captain Underpants Lamp – Personalized Room Decor with Name and Optional Light

Custom Captain Underpants Lamp – Personalized Room Decor with Name and Optional Light

Sale Price $34.70

Original Price $46.27 (25% off)

May include: Three red-handled coffee mugs and several cards featuring a cartoon character in a diaper and cape. The mugs have a red interior and the words "YOUR NAME" printed on them. The cards also have the words "YOUR NAME".

Personalized Captain Underpants Mug with Name - Fun Gift for Kids - 6 Designs - Ceramic

Sale Price $12.95

Original Price $17.28 (25% off)

Disclaimer: As with all children's products, adult supervision is required. Products that contain small parts may pose a choking hazard and should not be used by children under 3. Sellers are responsible for following applicable laws and regulations, including posting items with accurate labeling and warnings. Etsy assumes no responsibility for the accuracy, labeling, or content of sellers' listings and products. Always read labels, warnings, directions and other information provided with the product before using it. If you have any questions, message the seller. See Etsy's Terms of Use for more information.

Shoppers with similar taste loved these

Show more
Show more

Explore related searches

Boy Pirate Vest

One Piece Blackbeard Coat

Kids Captain Jack Sparrow

Listed on Nov 11, 2026
56 favorites
Homepage Clothing