Complete grommet kit: grommet kit includes a hole punch, a matching mandrel and 150 set of eyelets and washers (each set contains 1 eyelet and 1 disc), and all packed in a PE storage box.High-quality material: made of high-quality Cupro nickel and galvanic surface coating, Grommet eyelets are very rust-proof with high corrosion resistance and shiny appearance.[Easy to use]First use the hole punch and matching mandrel to cut a hole in the tarpaulin, then take the eyelet set and the attached tool to secure the eyelet kit well (full steps show the picture, which is viewed more directly). Complete kit makes installation easier.[Application]Provide an economical solution for repairing canvas, tarpaulins, tents and pool covers, good for shoes/laces, clothing, craft projects, etc.Eyelet size and with storage box: 12 mm inner hole diameter, 18.8 mm outer flange diameter and 1/5 inch barrel length (see picture 2). With plastic storage box, good for storing small nozzles, easy to pick up and apply when sewing.Colour: silverMaterial: copperPackage Contents:3 * installation tools150 sets * grommets eyelets (each set includes 1 eyelet and 1 washer)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.