Great Stainless Steel Knife from Scubapro. 

Constructed from hard-tempered stainless steel to provide an excellent cutting edge and good resistance to surface oxidation, making this an ideal knife for diving.  

Features:

A conventional knife edge strong enough to slice through numerous materials.  

Line Cutting knotch for cutting small ropes and fishing lines and perfect in an emergency to get you out of a tangle.

Serrated Edge for sawing heaveier ropes and branches.

Bottle opener

Sheath with locking mechanism which allows for one-handed release from and replacement of knife into the sheath.  

Be sure to rinkse your knife in fresh water after your days diving to keep your knife in immaculate condition.