Tree Spider Livewire Descent System - The Tree Spider Live Wire Descent System is a uniquely designed safety system that allows for a safe, hands-free descent from your stand should you ever experience a fall. The small, lightweight system clips onto a tree straps soft webbing loop while the other end clips to the harness tether. Should you experience a fall from your treestand, the Livewire system catches your fall and quickly descends you to the ground. Hands free descent Features 1 lightweight aluminum powerlink carabineerSelf contained into 7" x 5" x 1.5" pouchNot designed for use above 25 feet For emergency use only One time use