Descenders, such as 8 Rings, are staples of rope climbing systems whether for recreational or arborist use. They work via friction generated between their aluminum bodies and the climbing line, allowing the climber to control the rate of descent. We offer them in the various styles shown below. For more advanced, technical climbers, we have mechanical descenders such as the Kong Indy and the Petzl® I'D series. We stock Prusik Runners too, which are also used to control the rate of descent.