Aluminum rope tightener. Features knot-free CamJam tightening and tensioning technology. Built from durable, cast aluminum. Combination of carabiner and cam mechanism designed to tighten, tension, connect, and secure loads. Carabiner clip and gate on one end, rotating cam mechanism on the other. Allows a fixed end or a loop system configuration. Easily adjusts and re-adjusts over and over to use in various projects and applications. For a fixed end system, anchor the carabiner to any hook, D-ring, or loop, and feed the rope through the cam until the desired level of tension is reached. Pull the rope firmly and the cam locks into place until released. For a looped system, tie a knot to create a loop in one end of the rope. Clip the CamJam into the loop, pull the other end through the cam. To release the cam, rotate the lock lever and pull rope upward.