1. A perfect gift for the beginner or serious glass artist. 2. The keychain fittings can not only install keychain fittings, the tool can also install glass. The jaws of the running pliers act as a fulcrum where pressure is applied evenly to both sides of a score line, driving the score through the glass. The guiding pliers work best on straight cuts, also good on gentle curves. 3. The jaws are curved which is the most important feature, are very well machined. The rubber stops are lubricated inside, so they don't dry out. The set screw is easy to adjust and properly threaded. 4. With rubber tips, you can prevent your keychain fittings from being scratched. Shape: Flat End Jaw width: 25 mm Length 205 mm Glass installation instructions: Step 1: Break the glass by holding it in one hand and the pliers in the other. Step 2: Place the edge of the pliers parallel to the score line, 6 mm away. Step 3: Apply an up and down motion. Step 4: To score or remove unwanted edges of the glass, use the serrated jaw and pinch the glass. size: 205 x 25 mm material: steel + PVC color: red Package contents: 1 x Flat Mouth Glass Pliers Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3 cm.