The Tek-Lok is a great belt loop system that works on KYDEX belt sheaths or gun sheaths. This locking system allows the knife or gun to be carried in the Vertical or Horizontal position on your belt or web gear. The Tek-Lok works like a door swinging closed and snapping into place for a secured carry. The Tek-Lok can be unlocked and removed via a specially designed molded pair of friction-grip press handles from its sides. The hole spacing set up for the Tek-Lok is 1 inch on its centers. Large Tek-Lok : 2.25" x 2 " Inside Dimensions : Fits belts from 2.25" to 1.25". Mounting Hardware: Includes, 2, 3/8 posts, 2, 1/2 screws and 2, 1/4 "sound silencing" spacers.