Thank you for viewing! These were made with 27mm and 22mm walnut buttons. Quilt batting is sandwiched between the button and the fabric. The back is felt. The elastic can be replaced. I make these with care, but please understand that these are handmade items and consider this before purchasing. Handmade item discount: Buy 2 items, get 100 yen off Buy 3 items, get 150 yen off Buy 4 items, get 200 yen off Buy 5 items, get 250 yen off Discounts cannot be applied after purchase, so please be aware of this.