Package Includes: 4 installation tools 1 pcs x round base(2 cm) 10 sets x silver snaps (40 pcs) 10 sets x green antique color snaps (40 pcs) How to use: Step 1- Prepared 1x socket, 1x cap, 1x post and 1x stud. Step 2- Use a hammer to poke a hole on the leather with the provided punch tool. Step 3- Put the leather between the cap and socket.Step 4- Use the pointed tool, vertically hammer it with light force to push the cap and socket together. Step 5- Poke another hole on the leather with the provided punch tool, strike with a hammer. Step 6- Put the leather between the post and stud. Step 7- Use the concave tool, vertically hammer it with light force to push the post and stud together. Step 8- Lock the mechanisms together securely. Leather Snap Fasteners Kit Punching Tool Set How to use Widely Application Our snaps are suitable for clothes making, decoration and repairing, leather crafts DIY, shirts, jackets, overalls, backpacks, shoes, hats, belts, cotton-padded clothes, jeans, leather, and so on. NOTE: Please make sure your fabric is suitable before buying.