Boker 02BO516 Plus Knife 2.87" 440C Stainless Skinner Bone The Cowboy Crossdraw has a blade made of 440C stainless steel which provides all the punch needed for everyday work chores, as well as providing an excellent skinning knife. Its handle scales are rugged jigged brown bone. Included is a unique leather sheath with a sewn-in magnet.