Material: Synthetic rubber External dimensions (height, width, thickness): Approximately 9 x 11 x t3.2 mm Quantity: 55 pieces (or more) No case, copy of instruction manual KOKUYO Hittsuki-mushi (Sticky Bugs) 2 sheets Doesn't damage walls like thumbtacks do. Securely holds up notices without damaging them. Reusable adhesive that can be peeled off cleanly. Can also be used as putty to fill holes, and prevents slipping and tipping. Convenient for attaching posters, temporarily holding memos, and securing small items. N4⑱