Thank you for viewing! These were made with 27mm walnut buttons. Quilt batting is sandwiched between the button and the fabric. The back is felt. The elastic can be replaced. I make each item carefully, but please understand that these are handmade items and consider purchasing accordingly. 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.