Thank you for viewing! Made with 22mm covered buttons. The back is felt-backed. The elastic band can be replaced. I make each item with care, but please understand that these are handmade items and consider this before purchasing. Discount for multiple handmade items: 100 yen off for purchasing 2 items 150 yen off for purchasing 3 items 200 yen off for purchasing 4 items 250 yen off for purchasing 5 items Please note that discounts cannot be applied after purchase.