Not a belay device!
This item works very well when you use it to escape from a big wall or trad climb, or even at the top of a rappell. Make no mistake about it, this is not a belay device, such as the ATC, ATC-XP, or the Guide ATC; or any other belay device. This item is used to rappel from, not belay with. I have used these on several occasions, for their intended purpose and they work great! Nice, light, and easy to use.