The 9-ring descent device is easy to operate, fast and labor-saving, and suitable for beginners. The 8-ring descent device has no handle and no braking effect, and needs experienced hands. For beginners, the 9-ring descent device is easy to use.
The use method of the 8-ring descent device is as follows: firstly, bind the escape rope with the 8-ring descent device, connect the rope at a fixed point, with a distance of about 1.5m from the fixed point; Secondly, fold the rope in half, pass through the big ring of the 8-shaped ring and put it on the small ring; Finally, connect the small ring of the 8-ring descent device with the safety buckle of the seat belt.