The REVERSO is a lightweight multi-functional belay/rappel device designed for cragging, multi-pitch climbing and mountaineering. Reverso mode provides assisted-braking while belaying one or two seconding climbers from the top of a pitch. � Weight: 57 g � Rope compatibility: single ropes 8.5 to10.5 mm, half ropes 7.1 to 9.2 mm, and twin ropes 6.9 to 9.2 mm � Certification(s): EN 15151-2, UIAA