Keychain Size: Wide Base: 25mm, Quantity: 40 Sets (40 Key Rings and 40 Separate Key Rings) with Tools for Fabric, Ribbon, Canvas, Canvas, Bing, Embossed Wristbands. Glass Pliers Tools Size: Length: 20cm; Adjustable screws allow you to control the amount of pressure applied, the adjustment screw is easy to adjust and properly tapped; You can use them on different thickness of glass. Great Value for Money: The great tools are not only for glass fusing, breaking small pieces of glass for crafts, cutting glass for window panes and most glass projects. But also install the keychain Hardwar easily. What You Get: In this kit, you will receive 1 glass clamp with 40 pieces keychain hardware, including 10 pieces gold, 10 pieces black, 10 pieces bronze, 10 pieces silver. The adjustable screw allows you to control the amount of pressure applied, the set screw is easy to adjust and properly tapped; you can use them on different thickness of glass.