1. A perfect gift for the beginner or the serious stained glass artisan. 2. Key fob hardware can not only install key fob hardware, The tool also can install Glass. Running Plier Jaws act as a fulcrum where pressure is applied evenly on both sides of a score line, running the score through the glass. Runnering pliers work best on straight cuts, do well on gentle curves too. 3. The jaws is Curved which are the most important feature, are very well machined. The rubber stops are lubricated inside, so they won't dry out. Set screw is easy to adjust, and properly tapped. 4. With rubber tips, Can prevent scratching your key fob hardware. Shape: Flat end Jaw width: 25mm Length 205mm Install glass Instructions: Step 1: Break the glass by holding it's surface in one hand and holding the plier in the other hand. Step 2: Position the edge of the plier parallel to the score line, 1/4 inch . Step 3: Apply a quick up and out motion. Step 4: To groze or remove unwanted edges from the glass, use the serrated jaw and glass. size:205 x 25mm Material:Steel + PVC colour:red Package Contents: 1 x Flat mouth glass pliers Only the above package content, other products are not included. Note: Light 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.