Ladder lock buckles
Ladder lock buckles are one-piece adjustable strap fasteners. One end of the strap is passed through the slot farthest from the lip of the buckle, and secured in place by stitching and / or gluing. The other end is passed up through the middle slot, the down through the one nearest to the lip. Whilst the buckle is laying flat the strap will not move when pulled. To release or adjust the strap simply lift the buckle.