Feature: 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, tarps, tents and pool coverings, for shoes/laces, clothing, bags, crafts, etc. 3. Easy To Use: The grommet eyelet is easily held in place with the hole saw and matching mandrel; the mandrel surface 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. Specification: Item Type: Grommet Tool Kit Material: Stainless Steel Specifications: 100 Sets Of Eyelets (Including Eyelets And Spacers) Product Size: Approx. Eyelet Button Size: Outer Diameter 20mm / 0.8in, Inner Diameter 12mm / 0.47in Gasket 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 Skid Punch Size: Length 2cm / 0.78in, Diameter 2.1cm / 0.8in. Package List: 100 x Eyelet Button100 x Gasket1 x Punch Tool1 x Corn Punch1 x Anti Skid Punch