The Coast Pro Razor Knife, No. DX211, is fitted for standard sized double-ended utility blades. The knife has the company's proprietary double lock mechanism that prevents the knife from accidentally closing, in addition to the liner lock, which engages automatically when the blade is opened. The 5.8 oz knife, which is 7.4" when open and 4.9" when closed, offers a fiberglass-filled nylon handle with texture for grip and easy pulling motion with the knife. It includes three extra blades with thumb studs for ambidextrous opening. The DX211 is backed by Coast’s lifetime warranty against defects in materials and workmanship.