The Koah Standard Dive Knife built from high quality 420 Heat treated stainless steel. It has a 4.5in blade with half serrated and have smooth blade with razor sharp tip. High visibility Koah Orange handle and Teflon coated blade. Best part about this knife is the effective magnetic Sheath which allows you slide and secure your knife in without using the typical rubber security strap. Two rare earth sealed magnets keep everything in place. Knife comes with necessary leg/Arm adjustable rubber straps and replacement clips. This awesome blade features a double edge full serration blade reminiscent of the serrarion on a shark tooth! Available in two blade lengths: 3.5 or 4.5 inches. Be sure to send us a message with your purchase to let us know!