Aluminum Descender 

Advantage: at the effect of the weight(≥30kg), the cam blocks the rope and handle open automatically; hold the handle by one hand and pass the rope by the other hand, control the descend speed and the hovering position in air, or even when people is too nervous and grip the handle, and it would be stopped automatically. If install in wrong method, this descender would block the rope and make sure users would not fall.   

Good for: high work, fire-fighting, rescuing, and outdoor sports, etc.

For use with ropes between 10mm and 13mm in diameter

Minimum descending load: 30kg

Peak load: 150kg