The Tethys Pro by CAMP is a lightweight, high-efficiency, compact pulley.

It is designed to carry seamlessly on a harness and attach to ropes with ease and features rotating side plates and a large attachment point that accommodates two carabiners. The Tethys Pro by CAMP uses the same design as the Tethys, but features sealed ball bearings for higher efficiency and intensive use at higher speeds. Prusik knots can be installed on either side (aramid cord suggested) making it an ideal pulley for rigging a hauling system on route or managing crevasse rescues.