Features a durable handle with a blade cover for safety. The cutter is a rolling blade used to cut materials into shapes, strips, and pieces for sewing, quilting, and craft projects. The blade is made of high quality tungsten carbide tool steel for unparalleled sharpness and superior edge retention. Designed for both right and left handed use. Use replacement Olfa Rotary Blades: OLFRB45H-1 45mm Endurance or OLFRB452 45mm, each sold separately.