Assisted braking climbing belaying devices are used to stop the fall of the lead climber. They are essentially based on tubular belaying devices but are equipped with a camming device that comes into play when the rope is put under tension (in case of a fall). The device helps the belayer in their task to stop the fall; however, the rope must always be held firmly, even by using this king of devices. Assisted braking devices can be used with a single rope and they usually have a lever that allows to release the rope once the camming device has sprung. DMM is a Welsh brand founded in 1981 by four friends addict to mountain and climbing. They aimed at producing gear at the best possible quality by at the same time keeping the prices low. Thirty years later DMM is one of the best-selling brands for hardware and employs more than 150 persons. DMM also produces professional gear for work, which contributes to the research and the improvement of all the equipment.
