540PCS Grommets Set Durable Clothing Metal Eyelets Button With Installation Tools. Feature: 1.Made of quality brass on surface, with very great corrosion resistance and bright looks, very hard to rust. 2.Complete kit make the installation more easy. firstly use the punch tool to cut a hole on tarpaulin, then take on the eyelet kit, finally use the fastened tool to fasten well the eyelet kit. 3.No special tools are required. 4.Provide an economic solution for repairing canvas, tarps, tents and pool coverings, good for shoes/shoelaces, clothing, crafts works etc. 5.Including 3 install tool, the punch tool can be applied to poke a hole on the leather craft, leather straps, clothing, then hammer it to push the 2 parts of grommets together. Specification: Material Brass; Model Outer diameter 9mm, Inner diameter 5mm; Color12 Color; Uses: Mostly used in outdoor products such as luggage, clothing, shoes and hats, tents, nets, etc. Installation: Need to use a dedicated corresponding knock mold (mold). Package Included: 540 X Eyelets; 3 X Install Tools