ENJOY SAFER CLIMBS IN THE BLACK DIAMOND ATC PILOT.You can never be too safe up on the crag, which is why Black Diamond designed the ATC Pilot for an added level of security. An advancement in climbing tech, the ATC Pilot accommodates ropes ranging from 8.7-10.5. With no moving parts and a smooth control, you'll get gradual and easy lowering during your climbs. The non-slip surface offers a secure grip. FEATURESAccommodates ropes from 8.7-10.5Provides an added level of security to single pitch belaysSmooth rope payoutControlled loweringSteel constructionErgonomic, non-slip surfaceSingle rope use