Its large 10. 2 milimeter diameter and thick sheath mass make the Mammut Gravity Classic Climbing Rope an excellent choice for gym climbing. This big boy is super strong with a 10 11 fall rating by UI, meaning you can take gigantic whippers for multiple seasons whether you're training in the gym or projecting those impossible to climb routes outside. It's also particularly useful for beginner climbers who want a bit more bulk to help them learn how to belay and climb appropriately. Get the 60 meter rope if you're planning on climbing with it in the gym, or take the 70 meter one out to the crags.