The CamJam XT Large Aluminum Rope Tightener features Nite Ize signature knot-free CamJam tightening and tensioning technology. Designed for heavy-duty items and bundles and built from durable cast aluminum, this rugged combination of a carabiner and cam mechanism can tighten, tension, connect, and secure serious loads up to 500 lbs, or 250 lbs with the included 10 ft. rope.