Grommet Kits include 200pcs 6mm silver grommets, 200pcs 6mm metal grommets, 1pc Eyelet Pliers. These metal grommets are self-adhesive and do not require washers. Inner diameter: 6mm, and outer diameter: 12mm. Widely Used These durable tarpaulin grommets are suitable for denim, canvas, tarpaulin, tents, awnings and other fabric items or other materials with a thickness of less than 1mm. Easy to UsePlace the grommet pliers where you want the hole to be made and press the handle to make the hole. Put the grommet and use the pliers to press it into the fabric. Eyelet PliersThis manual hole puncher with a special lightweight design, it is easy to take anywhere. The eyelet pliers can apply eyelets to a variety of materials such as fabric, leather, plastic, acrylic, canvas, suede, etc. High qualityThe Eyelet Pliers is made of carbon steel, chrome-plated on the surface, the handle of the punch pliers is impregnated with plastic, which is comfortable to grip, easy to use and labor-saving.