Grommet kit: 200 sets grommets in 4 colors, bronze, gun color, gold, silver, 50 sets per color; 3 Pieces grommet tools include 1 base, 1 punch and 1 install tool Copper grommets: made of durable copper material, strong and solid; Size: inside diameter is approx. 1/ 4 inch (6 mm), outside diameter is 3/ 8 inch (10 mm), barrel length is 1/ 8 inch (3 mm) Easy to use: you can easily use the grommet kit to repair by yourself; Please mark incisive end of the drilling tool on the leather, and then hit the leather with a hammer or another mounting tool; If the leather is thicker, you need to hit the leather several times; They are useful accessories for leather, tents, awnings, canvas, tarps and other cloth-made items Practical grommet tools: they can be applied for poking a hole on leather crafts, leather straps or clothing, then hammering to push grommets together Suitable storage way: all grommets and tools are contained in clear compartment storage box, which makes it more convenient to find the corresponding components