The Exacto Ergo Utility Knife is a craft knife with a large handle designed for use by individuals with arthritis or grasping disabilities. Useful for cutting cardboard, matboard, foamboard and other art materials, this knife has a large ergonomically-designed handle allowing a full-hand grasp for those with limited hand strength and dexterity. A twist-open knob and patented hinged casing facilitate changing blades. This knife also allows the blade to be positioned horizontally for use as a paint scraper. Two standard utility blades are included. OPTIONS: Package of five replacement blades.