These are earrings made from actual buttons recycled from an old Playstation (PS2) controller. The same design as PS3 and PS4 controllers. They are 10mm (.4in) in diameter by 5mm (.2 in) thick, and have hypoallergenic posts with butterfly earnuts. (Posts and nuts are made of a nickel and lead-free surgical steel, and are silver or gold plated. If you would like silicone earnuts just let me know) What better way to show off your inherent geekery in a subtle, fashionable way! Great for you or a gift for a gamer! This listing is only for a pair of two earrings. If you would like a set of 4 please see my other listings.