The Superknife ULTRASHEAR is an anvil style cutter designed to use contractor grade utility knife blades. When the blade dulls with use, it can easily be replaced with a new, sharp, utility blade. Built with quality, affordability, and convenience in mind, the ULTRASHEAR is constructed of stainless steel with a contoured rubber grip handle, and features a push button safety lock. The ULTRASHEAR will cut rope, hose, plastic, vinyl and rubber with ease. You will also find the ULTRASHEAR to be a helpful tool while pruning your garden and will even trim the tip off your cigar! Never be frustrated having a dull cutter again. SUPERKNIFE- never a dull moment.