With the creation of the BRD by Metolius, we have achieved a simple, safe and bombproof belay/rappel device. The principle behind the BRD is very simple: as the load of a falling climber is applied, the carabiner is pulled into the scientifically engineered rope slots and the rope is squeezed between the carabiner and the BRD. The result is that a tremendous amount of friction is generated, allowing the belayer to easily catch long, hard falls with relatively light hand pressure. For rappelling, the BRD will give you a relatively slow and controlled (and we feel safer) rappel. If the rappel is moving too slowly, you can re-orient the device for a speedier descent.
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