RIFFE SILENCER KNIFE Designed for divers who prefer a knife with a self locking sheath. This NEW HUNTER'S KNIFE has the same 4 1/2" serrated Teflon coated blade design as our popular Spearfisher's Knife, which has remarkable cable cutting capabilities and a few added features. The new black & grey soft-grip handle has a tool built in at the end for removing shafts wedged in rocks and may be used as a banger to attract the attention of other divers or fish. The 7 1/2" hard plastic sheath has reversible self-locking capability and sliding safety to prevent loss of knife after removing from sheath (an easy one-hand removal). The lanyard stretches over sheath for additional safety. Rubber leg straps included.