Kirby Morgan Neoprene Neck Ring Assembly (For SL 27) Underwater Drill Kirby Morgan 525 377 Soft Goods Size:Standard Size Kirby Morgan 525 377 Soft Goods Overhaul Kit For KM 77 The wavy pattern cut from the top of the blade (created by a fireman from Sweden) and along the inside of the handle let you place a piece of rope (between the half open blade and handle) and scissor the blade shut especially convenient for cutting rope in and around flesh without having to fully open expose the knife's blade 505 094 Small Neoprene Neck Ring Assembly (For SL 27) This Kirby Morgan neck ring assembly comes with a neoprene neck dam and is used in the Kirby Morgan Superlite 27