*Eyelets Kit: This grommet kit includes 480 eyelets in 12 different colors, 1 hole puncher and 1 set of setting tools. Each eyelet consits of a grommet and a washer. *The eyelets come in red, orange, yellow, blue, light blue, purple, black, white, pink, silver and grey. *High Quality: Made of premium galvanized cupronickel, the metal eyelets are rust-resistant, strudy and strong. The hole punch and setting tools are made of heat-treated carbon steel, rust-free and durable, and the knurled handles can give you firm grip when you're using them. *Easy to Use: First, punch a hole with the puncher and a hammer. Put a grommet (the colored parts) and then the hole through the shaft of the mandrel base. Put a washer on the top, and hammer it with the setting punch- this is to make the edge folded over so that it can secure the two halves together. *Common Size: The inner diameter of the eyelets is 4.5mm, perfect for putting cord, rope, or string with a same or smaller diameter through it. The grommets are 4.7mm high, but you need to leave at least 2mm for fixing, which means they are suitable for fabric less than 2.5mm thick. *Wide Applications: 12 colors in one pack This eyelet kit is perfect for clothes, corsets, shoes, bags, curtains, leather items, canvases and other things with a thickness less than 2.5mm. Great for DIY craft making, clothes making and repair.