The Koah Magnetic Sheath Dive Knife is built from 420 Heat treated steel, comes with a Teflon protective coating and comfort Koah yellow grip for high visibility. The best part about this knife is the innovative Koah Magnetic Sheath. Two powerful rare earth sealed magnets keep the blade secure in its sheath without the use of the rubber secure strap. All Knives come with adjustable rubber mount straps and clips for easy arm/leg mounting.