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This 2 1/4" pin back button reads:

"Keep calm and test on!"

A nod back to the Portal games on Steam, this is a hilarious button to wear at school or work as most will figure you're referring to something logical in the real world with a dry sense of humor - only fellow gamers will know that you're referring to Glados from Portal 1 and it's sequal!

Great for any gamer with a great sense of humor!

Keep Calm and Test On - Portal 1 and 2 - Pin Back Button


  • Handmade item
  • Materials: pin back button, 2 inch
  • Ships worldwide from United States
  • Feedback: 44 reviews
  • Favorited by: 27 people