Large rescue knife for kayakers, professionals and boaters. Titanium blade. The cutting edge has both smooth and serrated sections plus a rope cutting hook. The blunt tip design protects against unintentional puncture of your gear or yourself! Also doubles as a flat-head screwdriver. The unique sheath firmly locks the knife in place and only lets it go when you squeeze both sides of the release. The sheath clip attaches firmly to a PFD lash tab. Also included is a bottle opener in the handle of the knife. Squared hole in handle serves as a valve wrench for an oxygen tank.