Sizes: 3, 4, 5, 7, or 10 mm Quantity: 2 sets ☆ Colors: Silver, Gold, Antique Gold ☆ Please comment if you have a desired number of sets! We will accommodate your request! Suitable for cartonnage, leathercraft, and expandable albums. It's used like a rivet, but it's a screw type, so you can attach and detach it repeatedly.