This is a super Serrated BC Stainless Steel Scuba Diving Knife This compact knife features: 420 stainless steel blade Easy disassembling for cleaning and maintenance Single action button locking system sheath 3 blade The molded sheath with pre-installed clips are designed for easy mounting Can be placed by velcro closure straps of BC or nylon tight straps Thin 2.5" slot on back for running a belt, or webbing, or strap to attach the knife to the BC or a belt Single hand insertion and removal from locking sheath KN220 This Great Compact Scuba Knife with Serrated edge is the perfect companion size for streamline diving. "