Yescom Grommet Tool Kit includes 3 die sets (#0, #2, #4) with 300pcs nickel-plated grommets and washers per size 12' handle in soft-grip foam provides maximum mechanical advantage to punch through and set grommets in materials up to 3mm thick 3 die sets made from hardened stainless steel to withstand daily use 900pcs grommets feature corrosion-resistant nickel plating, ensuring your projects maintain professional look Ideal for banners, swatch books, yacht/truck/trailer covers, tents, leather goods