C.A.M.P. Tethys

"The Tethys pulley from C.A.M.P. is the perfect choice for climbers who value lightness and compactness. Thanks to its movable side parts, it can be easily worn on a climbing harness and offers an attachment point for two carabiners, which increases flexibility and safety when climbing. The pulley rotates on self-lubricating bearings, making it the ideal solution for light loads and low speeds."
"The Tethys pulley is particularly useful for hauling haulbags over steep rock faces or for self-rescue maneuvers in crevasses. It can be installed on both sides and is suitable for use with self-blocking knots, although the use of an aramid cord is recommended. These features make the Tethys an indispensable companion for demanding climbing tours and rescue missions."