This is a set of 20 pairs of snap buttons (^o^) These are not buttons that you sew on with thread; they have no holes for sewing thread, so you can attach them securely with glue. To fasten the snap buttons, it's easier to tap them in with a punch, but you can also pinch them together with pliers❗️ As shown in photo 2, overlap the two pieces facing upwards and tap them together (^o^) It takes a little force❗️ Size: Approximately 9 x 7mm Color: Matte Gold Material: Alloy Quantity: 20 pairs I also sell other accessory parts, so if you purchase multiple items, I will offer a combined shipping discount (*^▽^*) Please note that these are imported products and may contain color unevenness or uneven plating. Please consider this before purchasing m(__)m Discounts on single items are not available. Tags: Various Parts Snap Buttons Mask Piercings