The Schrade Nitro Assisted Open Folding Knife SCHA2S. Aluminum handle. The blade is 4034 stainless steel 3.4 inches, closed it is 4.5 inches. It has a thumb screw, and includes pocket clip. The knife is a liner lock with the new M.A.G.I.C. assist open system, and also has a slide button safety on the handle. Includes glass breaker tip.