Boasting a thick diameter of 9.9mm, the 9.9 Rope from Black Diamond is a tough single rope built for heavy use, meaning it can be your go-to rope for day-in and day-out use at the gym or for climbing courses. It's a great rope for beginners to use for tough routes at the gym that ...Boasting a thick diameter of 9.9mm, the 9.9 Rope from Black Diamond is a tough single rope built for heavy use, meaning it can be your go-to rope for day-in and day-out use at the gym or for climbing courses. It's a great rope for beginners to use for tough routes at the gym that they don't want to lead climb yet.
Of course, this single rope is great for heavy use in alpine terrain as well - be it for high-altitude mountaineering or climbing sharp rock - when you don't want to lug around a double rope. Actually, the 9.9 Rope from Black Diamond would be perfect for high-altitude mountaineering with a long glacier approach and descent, because these situations can be quite taxing for ropes. However, a rope with a complete sheath and core treatment would be better in the long run.