Welcome to our store! 1. Punching Tool: Special tool processing at the edge, not easy to deform, not easy to become blunt, durable. 2. Applicability: Suitable for providing economical solutions for canvas, tarpaulins, tents, and pool covers, for shoes/shoelaces, clothing, bags, crafts, etc. 3. Easy to Use: The grommet is easily held in place with the hole punch and matching punch; the surface of the punch has a unique pattern, and the non-slip punch provides a firmer grip. 4. Stainless Steel Material: Made of high-quality hardened stainless steel material, the structure is firm, and it is not easy to rust and deform. 5. Easy to Install: Professional installation tools, you can complete the installation quickly and easily. Item Type: Grommets Tool Kit Material: Stainless Steel Specifications: 100 Sets Grommets (Including Grommets and Washers) Product Size: Approx. Grommet Button Size: Outer Diameter 20mm / 0.8in, Inner Diameter 12mm / 0.47in Packing Size: Outer Diameter 200mm / 7.9in, Inner Diameter 13mm / 0.51in Punch Tool Size: Length 9.5cm / 3.7in Corn Punch Size: Length 10cm / 3.9in Anti-slip Punch Size: Length 2cm / 0.78in, Diameter 2.1cm / 0.8in 100 x Grommet Button 100 x Washer 1 x Punching Tool 1 x Corn Punch 1 x Anti-slip Punch If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.