Craft from stainless steel, not easy to break These press studs fastener installing hand tool includes 2 setter base, 2 hollow puncher tool, and 7 punching installing tool Use punching tool to hole in leather fabric, and use tool, push grommets together to set the studs These press studs fastener installation hand tool widely used for fixing press studs into clothing, repairing handbags, leathercraft, jackets, leather belt, gaskets belt Widely used for leather working, leather bags, leather shoes, leather belt, sewing, tent, curtain, clothing reapir, jackets, leathercraft repair NOTE: Do not include actual press studs Only comes with installation tool