Grommet Kit---The package includes 400pcs grommets with 400pcs washers in mixed colors, the enough quantity with 3MM suitable size can meet your DIY crafts making. Easy to Install---The punch tool can be applied to poke a hole on the DIY items, then hammer it to push the 2 parts of grommets together. Material---Made of high quality metal material, high hardness, electroplating treatment surface, rust and corrosion resistance, beautiful appearance, sturdy and Great Accessories---Great accessories for decorating your scrapbook, bags, belts, bracelets, shoes, clothes, canvas, and other leather crafts. Mainly Use---It is used to prevent tearing or abrasion of the pierced material. It is suitable for shoes, apparel, shoelaces, DIY crafts items, canvas, tarpaulins, tents, awnings and other cloth items.