Attaching your harness to a tree just got a whole lot quicker and quieter. The attached Prussic knot slides freely for fast adjustments. A non-locking steel carabiner adds safety and convenience. Lets you adjust your distance from the tree precisely, while providing reliable safety and freedom of movement. 8-ft. long. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Treestand Accessories.