This leather kit is designed for amateur hobbyists and professionals. İncludes parts for setting snap buttons, eyelet grommets and rivet;Manuel Hand Press Machine (this is silent hand clicker press use for leathercrafting, trousers, fabrics etc.),9 mm Single Cap Rivet Dies ( rivet setting tool for rivet press),9 mm Double Cap rivet dies;No:3 Eyelet grommet dies (for out diameter:10 mm, height:4,8 mm, hole diameter:5,4 mm eyelets);9,5 mm Open Ring Prong Snap Button Dies,12.5 mm ( Line 20) fashion spring snap button dies (snap setter tool for press machine),15 mm Utility Spring snap button dies,3 pieces hole punches that are 2mm, 2.5 mm, and 3 mm diameter that come with brass base.