Tac-force Assisted Opening Sawback Bowie Rescue AIR FORCE Black Half Stainless Steel Blade Knife - GRAY HALF SERRATED BLACK STAINLESS STEEL BLADE Fast & smooth operating spring assisted knife Stainless steel removable Belt metal clip for carry Open length: 7.75" Closed Length: 4.5" Blade Length: 3.25" Made by Surgical Steel, High Quality & Last Long