The basics 60mm Deluxe Rotary Cutter features OLFA's new ergonomic design providing a comfortable and positive grip. The benefits Dual-action safety lock allows the user to lock the blade open for comfort and closed for safety. The uses Specially designed to cut through multiple layers of fabric and difficult materials. Can be used for industrial applications. The bottom line 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 user.