The CamJam XT Aluminum Cord/Rope Tightener features Nite Ize signature knot-free CamJam tightening and tensioning technology. Built from durable cast aluminum, this rugged combination of a carabiner and cam mechanism can tighten, tension, connect, and secure serious loads. The smaller cord tightener has a load limit of 280 lbs (100lbs with the included 10 ft. coyote paracord), while the large rope tightener holds up to 500 lbs (250 lbs with the included 10 ft. white rope).CamJam XT integrates a carabiner clip and gate on one end, and a rotating cam mechanism on the other. This intuitive design allows the CamJam XT to be configured in either a Fixed End or Loop System to securely tie down equipment, gear, and other heavy loads. In both systems, the CamJam XT can be easily adjusted and re-adjusted time and time again to tackle a multitude of tie-down projects over the years. The XT holds paracord from 1/16" - 3/16" (2mm - 5mm) wide, while the XT Large holds rope from 1/8" - 3/8" (3mm - 9mm) wide.To use the Fixed End System: Simply anchor the carabiner to any hook, D-ring, or loop, and feed the cord or rope through the cam until you've reached the desired level of tension. Next, pull the cord/rope firmly and the cam locks into place and stays that way until you release it.To use the Loop System: Tie a knot to create a loop in one end of your cord or rope. Clip the CamJam XT into that loop, then pull the other end of cord through the cam mechanism. This loop system enables you to bundle or wrap heavy loads and easily secure them.