The Scubapro K5 Knife has an 11cm stainless steel blade with fine hollow ground cutting edge, opposite serrated edge and a notch for line cutting. Ergonomic contoured handle: Well in hand with gloved or bare hands. Injection molded sheath and two quick buckles straps: Includes double safety system. Quick-adjusting straps allows diver to quickly position knife on calf, thigh or forearm. Eyelet on the top of the handle to attach a safety lanyard.