The Seac Titanium Dive Knife is an underwater tool every diver needs. The blade is 3.66" (9.3cm) in length with an overall length with handle is 8.26" (21cm). The knife has a partial serrated edge titanium blade with a trailing point tip and line cutter making the knife blade versatile with multiple functions. This very lightweight knife is virtually corrosion free, has a durable plastic handle equipped with a sure grip texture and eyelet on the butt end for attachment of a lanyard or clip. The double release system durable plastic sheath lets you pull the knife out one-handed. Knife can be fastened to the weight belt, arm, inflator hose, or calf.