The TDI Pocket Strike was designed by John Benner of the Tactical Defense Institute (TDI) as a comfortable, convenient, and concealable fixed blade. The hard plastic sheath of the Pocket Strike rests inside of your pocket and clips to the outside of your pants. The ring loop makes it easy to find and quickly deploy the Pocket Strike. Product Specifications WEIGHT: 0.4 lb BLADE TYPE: Fixed Blade BLADE LENGTH: 3.188 inches OVERALL LENGTH: 7.75 inches TANG STAMP: KA-BAR/TDI KNIFE MATERIAL: AUS 8A Stainless Steel GRIND: Hollow HANDLE MATERIAL: Nylon/Fiberglass ROCKWELL HARDNESS: 57-59 KNIFE MANUFACTURED IN: Taiwan SHEATH MANUFACTURED IN: Taiwan BLADE WIDTH: 1.675 inches