Locks into place with a simple pull of the cord. Anchor the carabiner clip to any hook, D-ring or loop. Feed your cord through the cam until you've reached the desired tension. Pull firmly, and it locks down until you release it by rotating the cam. This versatile, lightweight and knot-free cord tightener uses the loop-attachment or fixed-end system. Fits 1/16"-to 3/16"-cord sizes. Constructed of highly durable plastic with a stainless steel grate. Includes two 8-ft sections of 5/32"rope. Per 2 Not for use where disengagement could result in bodily injury or property damage. Not for climbing. Dimensions: 2.6"H x 1.4"W x 0.6"D.