The Buck Zipper Knife, like its name suggests, is a guthook knife that works just like a zipper. The combination of edge angle and hook length perform beautifully together. Back in 1993, there were a lot of guthooks on the market that just didn't do the job right. So, CJ Buck, a 4th generation Buck family member and current CEO and President, helped to design a knife that would live up to the family name. The drop point, guthook blade is made from industry standard 420HC stainless steel blade for supreme edge retention and is finished with Buck’s Advanced Edge2x Blade Technology.