Anyone whose skin has been torched by the cracks of Vedawoo, crystals of Joshua tree, or sandstone of Moab knows what the rock at these areas can do to your rope. The Nano 9.2mm, with its super skinny construction lives up to the Sterling Rope trademarks. So, no matter what happens to your skin, one constant you can count on is that the Nano 9.2 will deliver high end performance and longterm durability on extreme onsights, redpoints, and alpine routes. NOTE: Due to these ropes' small diameters, it is recommended they only be used for onsights, redpoints, and NOT for top-roping or working of routes. It is critical that proper belay devices be used and extreme caution should be taken.