The Zipper, like its name suggests, is a gut hook knife that works just like a zipper. The combination of edge angle and hook length performs beautifully. Back in 1993, there were a lot of gut hooks on the market that just didn't do the job. So, CJ Buck, a 4th generation Buck helped to design a knife that would live up to the family name. This knife with a birch wood handle and brass guard and butt is a tool you can count on.