TREE SPIDER Livewire Descent System Revolutionary and proprietary design. The first and only hands free decent system for hunting that gets you to the ground quickly and safely. Self contained into a small sealed pouch with rear hook and loop fasteners for attachment to tree strap with (1) lightweight aluminum Powerlink carabineer. Livewire is designed to be used with Tree Spider certified products. For use at heights of 25 feet or less.