Sizes: 3, 4, 5, 7, or 10 mm Quantity: 2 sets ☆ Colors: Silver, Gold, Antique Gold ☆ Please comment if you would like a different number of sets! We will accommodate your request! Suitable for cartonnage, leathercraft, and expandable albums. They are used like rivets, but are screw-type, so they can be attached and detached repeatedly.