The three-stage AutoLock is made from cold-drawn 4130 aircraft seamless alloy steel tubing, engineered using computer-aided design and state-of-the-art machinery. The high-tech and patented cam and ball bearings system ensures that the baton stays open while performing striking or jabbing techniques. Black gun finish, SuperGrip™, Power Safety Tip, Positive Lock. 11.5" with baton closed. 24oz.