Material: The pliers is made of stainless steel metal material, finished with polished surface. Glass running pliers ideal for breaking hard-to-break glass. Size is 10" long. The Rubber Tips: The rubber tip provides protection to avoid scratching your key chain hardware. With the plastic tip lid on the jaw, the lid protects the glass from scratching or peeling. EASY TO USE: Glass Running Plier has Adjustable set screw allows, set screw is easy to adjust, and properly tapped; you can use them on different thicknesses of glass. Extensive use: Pliers tools is not only for glass fusing, breaking small pieces of glass for crafts, cutting glass for window panes and for most glass projects. But aslo Install Key Fob Hardwar easily. Satisfaction Guarantee: Our every product is carefully selected and checked. If for any reason our Key Fob Pliers do not meet your needs, please contact our customer service team.