Metal Grommet Kit: You will get 1 Eyelet Hole Punch Plier and 300pcs eyelets in 10 different colors, each color 30pcs and 100pcs gold eyelets Specification: The eyelet inside diameter is 5mm and outside diameter is 9mm. The barrel length is 3.6mm. Easy to Operate: Line the pliers up with the material where you want the hole to be, then press down on the plier handle to make a small hole. Put the eyelet in place and use the pliers to press the eyelet grommets into the material, which locks the eyelet in place. Work with Various Material: The clamp plier tools can press eyelets into materials such as plastic, acrylic, canvas, suede, fabric, rubber, chipboard, cardstock, thick book board, laminated cards etc. Widely Used: The easy-to-use grommet kit can be used for many different projects such as shoes, clothing, shoelaces, DIY crafts projects, canvas, tarps, tents, awnings, and leather crafts and adding ornament to your crafts etc color: random color, don't accept the specified color. Material: Metal Package Contents: 1 Eyelet Hole Punch Plier and 300pcs eyelets Only the above package content, other products are not included. Note: Light reflection 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.