With The Safe-Line from Muddy, you dont have to climb a single inch without fall protection. Keeps you attached to the tree at all times, eliminating the need for bulky climbing belts. Prusik knot slides freely on the sturdy braided nylon rope as you carefully ascend or descend, yet if a fall occurs, it immediately stops you. Compatible with two hunters and any treestand. Length: 30 ft. Wt. capacity:300 lbs. Available: Single, Three-Pack. A Video Public Service Announcement from the TREESTAND MANUFACTURERS ASSOCIATION Type: Treestand Lifelines.