**** This listing/product page is newly created 1st April 2024, to replace my old listing, which was deactivated by Etsy for hilarious reason "NOT A HANDMADE PRODUCT".
The old listing, which was sold over 1500 units in last year, has been featured on many famous youtube/instagram channels; please check them out below, before making your purchase:

https://www.youtube.com/watch?v=r_LG8FDt51U (Steve Mould's video, with Transparent version shown)
https://www.youtube.com/shorts/kJ02VdRRcdg
https://www.youtube.com/watch?v=ZJvCP8q-SI0&t=7s (Adam Savage Tested channel)

This Perpetual Motion Device Simulator, or Perpetual Marble Machine as I origninally call it, went viral hugely on Feb 2022 after one of my customer post it on his famous Instagram (@physicfun). Since then, dozens, if not hundreds of cheap knock-off from China has spread all over Etsy and Amazon, get thousands of customer ripped off. Spend some minutes and read their item's review before placing an order.
If you want to purchase a gunuine device from the inventor, here is right place.

Please read this description carefully.

►►►This product is a Perpetual Machine Simulator, it is not a Perpetual Machine. It NEEDS battery to power up.
►The Battery is NOT included. Due to Air shipping regulation. Please refer to lower paragragh for battery detail.
►The Device must operate on Battery Power, it does not run on AC power. The Adapter is for charging the battery only.

►►►This listing is a Hand made item, Made-to-order type, which means after you make your purchase, I will then actually start to work on making your unit. The video and photos above is taken with a specific sample. Your unit will look almost the same, but can not be identical. Every pieces of wood is different. So please expect a small different in color/grain pattern.

►►►Product Details:

- Material: the Wooden parts are made of PAU ROSA, a premium quality & rare exotic, imported from Africa. The wire is made from Stainless steel. The Ball is made of Steel.

***** Update on 16th Sept: I offer a "Transparent" version - which I use Acrylic and Epoxy to make de Tray and the Base, instead of wood.

- Runtime: 5-6 hours (continuous - when the Battery is fully charged).

- Dimension: 22x20x12 cm (LxHxW)

- Weight: 1.2kg (without accessories)

- Accessaries: The machine comes with a charging cable and 5 steel balls. Charging adapter and battery are NOT included.

►Battery needed: 3.7 Volt 18650 Li-ion (Lithium), must be Flat-top (not Button Top - please see the Third-last photo).
I recommend to use Batteries which is less than 3000mAh in capacity.

- Example purchase link: https://www.orbtronic.com/samsung-18650-30Q-3000mah-15a-high-drain-battery-flat-top

► Adapter Charger: universal 5-Volt USB adapter which is used for smart phones.