The Allen Velox CX Terminus Three Blade Crossbow Broadhead by Allen is constructed using an aircraft-grade aluminum ferrule with razor-sharp .032-inch stainless-steel blades and stainless-steel locking ring tipped with a hardened carbon chisel style tip. The CX Terminus broadhead features 100-grain weight and 1.25-inch cutting diameter making it a devastating broadhead. Cutting Diameter of 1-3/8 Inches Hardened Steel Chisel Tip Stainless Blades with .032 Inch Thickness Aircraft Aluminum Ferrule Steel on Steel Locking System Great for Crossbows