The B.M.F. Tri-Edged Heavy Spear is a straight out, no-nonsense piece of equipment. The 10" blade is of cast 2CR13 stainless steel with a gray titanium finish. The tube is of impact resistant steel with a black oxide finish. This spear breaks down in to four pieces and stores in an easy-to-carry nylon bag. You can take it with you anywhere you need it.