Elk River EZE-Man auto descent self-rescue device with hub. Elk River is your solution for emergency high-angle rescue. Constructed of high-quality, lightweight machined aluminum, it won"t weigh you down. Lifting function to facilitate rescue. Captive eye carabiner. 1/2-inches kernmantle rope. Automatic controlled descent 3-feet per second. Bi-directional design - one end descends as other ascends. Approved for two person rescue 550 lbs total combined weight. Easy installation and operation. Black rope bag included. 3600 lbs gate. Professional rescue training required to use this device.