This knife was custom made by me on a CNC machine in my shop. It is a flipper style knife. The knife handles are made from 6061-T6 aluminum and have been hard coat anodized. The blade is S35VN and has been heat-treated and cryogenic tempered. The blade rides on hardened 440C stainless steel caged bearings and hardened stainless thrust washers. The pivot and pivot screw has been made from 416 stainless and has been hardened. The knife is a liner lock. The liners are made from 410 stainless and have a ceramic detent ball. The knife is 4.67 inches long closed 1.125 inches wide and .500 inch thick with a .125 inch thick by 3.25 long blade. The knife is 100% American made.