Engineered and developed to provide durability, strength, performance, and safety to enhance the cutting results of any auto glass wire cutting system... The ZipLine™ is a state of the art material designed to completely eliminate auto body scratching that occurs when using standard steel or braided wire. In conjunction with its anti-scratch quality, ZipLine™ has an abrasion resistant technology that offers the auto glass industry its first reusable auto glass removal line. ZipLine™ features a "no load under stress" reaction to line breakage. If the line breaks, it will not retract, spin or coil the way steel and braided wires do. This keeps the technician safe from potential injury.