Kinoko no Yama Takenoko no Sato Secret Party Member Goods Rubber Strap Based on the shape, it's likely a strap from Meiji's "Kinoko no Yama Takenoko no Sato," but the back of the packaging says "Secret," so no further details are provided. My grandfather gave it to my child, who kept it carefully. Size: Approximately 7cm x 7cm *New, Unused, Unopened Thank you for looking. #KinokoGoods #KinokoNoYama #TakenokoNoSato #MeijiCandy