The Nite Ize Camjam Xt Aluminum Cord Tightener feature Nite Ize signature, knot-free CamJam tightening and tensioning technology. It is built from durable, cast aluminum, this rugged combination of carabiner and cam mechanism is designed to tighten, tension, connect, and secure serious loads up to 280lbs. The CamJam XT products feature a carabiner clip and gate on one end, and a rotating cam mechanism on the other. This clever design allows the CamJam XT to be configured in either a Fixed End or a Loop System to securely tie down lumber, gear, and other heavy loads. In both systems, the CamJam XT can be easily adjusted and re-adjusted time and again to tackle a multitude of tie-down projects over the years. The XT holds cord from 1/16"-3/16" [2mm-5mm] in width.