The Black Diamond 9.9 Gym Rope is our burly 9.9 cord cut down to 35 meters, which is long enough for most indoor climbing walls. Boasting a thick diameter built for day in, day out use, the 9.9 Gym Rope is optimized for durability yet soft enough to deliver great handling.Sporting an easily identified middle marker, the BD 9.9 Gym Rope is the perfect dedicated indoor cord.