Our sewing snap buttons are made of high quality brass which makes it rust & corrosion free You will get 20 sets of brass snap buttons at the list price Snap button size: 10mm Our metal snap fastener sets are easy to use and effective fasteners for any sewing project, the 2 parts could be buckle together or separate easily. Suitable for: cloth coat,windbreaker,hats,shoes,belts,cotton,cloth blet buckle,etc. Size Name:10mm 20 Sets Metal Snap Buttons Nickel Brass Sew On Snap Fasteners Design: each snap button contains 2 parts, the front part and the back part, very easy to install, and these 2 parts can buckle together which can work as fasteners for any sewing project. Useful and convenient: you can use different buttons to match your different clothes, replacements could be natural as well Note: Small items, please keep them away from children under 3 years old.