The Mares Snake Knife is the preferred knife of expert divers. The Snake has a 5.32" (135mm) stiletto stainless steel blade with one serrated shearing edge and one straight cutting edge. The blade is 0.18" (4.5mm) thick. Knife has a soft anti-slip handle and semi rigid sheath that can be fastened on the leg with included leg straps or belt. Knife and has a metal butt cap that can be used for hammering or a tank banger.