Boker Plus Impetus Linerlock knives BOP01BO720 on sale now for $149.96. UPC code 788857028681. 4 3/8" closed. 3 1/4" stainless stonewash finish 440C stainless blade with extended tang. Features IKBS ball-bearing pivot. Black G10 handles with gray finish stainless bolster. Lanyard hole. Stonewash finish stainless pocket clip. Michael Burch design.