GPM Dive Knife - Scuba Diving Tactical Knife with Leg Strap and Secure Sheath - 440C Stainless Steel Diving Knife PGM Adjustable Leg Strap. Comfortable handle with lanyard attachment point. Quality tested and ensured for maximum durability. Features: 440C Stainless Steel. Light weight.High quality essential tools for all outdoor activities including scuba diving, hunting, rafting, boating, kayaking, fishing and more.