This is a set of Sanwa-made buttons (black) that were originally installed on a Fightbox. The set includes 11 buttons with a 24mm inner diameter and one button with a 30mm inner diameter. They are in excellent condition, having been removed immediately after purchase and only used for a brief functionality check. The contact points are bent due to the thinness of the Fightbox body, but this does not affect their functionality. Thank you for looking.