Side release cord lock. The parts come preloaded with the hole in alignment, which makes it significantly easier to install the cord locks onto garments, sleeping bags, or backpacks. By simply squeezing the sides after the cord has been passed through the holes, the locking mechanism springs up, pinching the cord. The all stainless steel spring offers a stronger lock. It is compact in size, but affords a larger opening to accomodate larger cords. Accomodates: 2x-1/8", 2x-3/16", 1x-1/4".