Features 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 Button 100 x Gasket 1 x Punch Tool 1 x Corn Punch 1 x Anti Skid Punch