Z-COLOR 1/2/4/6 Prong Leather Hole Tool DIY Diamond Lacing Stitching Chisel Set Leather Craft Professional Tools for Leathercarft (4mm) Package included: 1 Prong/ 2 Prong/ 4 Prong/ 6 Prong Material: white steel, Adopt high strength steel, it is tough in structure Adopt high strength steel, it is tough in structure Length: 100mm It can stamp holes evenly into your leather crafting project