The TDI Pocket Strike was created by John Benner, owner of the Tactical Defense Institute (TDI). The Pocket Strike is a fixed blade designed to nest in your pocket inside of its hard plastic sheath. The sheath clips to your pocket, allowing you to use the ring at the end of the knife for quick deployment while keeping your sheath in your pocket. The compact blade provides and easy to wield close range option in dangerous situations where defense is essential. The handles are a grippy nylon fiberglass that fits comfortably in the hand and gives you some assurance when you really need it.