VERSO is Petzl's lightest belay device. It is intuitive and easy to use in the gym or at the crag � Weight: 55 g � Rope compatibility: single ropes 8.5 to11 mm, half ropes 7.1 to 9.2 mm, and twin ropes 6.9 to 9.2 mm � Certification(s): EN 15151-2, UIAA