The Petzl High efficiency pulley with swivel possible to open, even when attached to the anchor, the SPIN S1 OPEN pulley is designed for maximum simplicity in setting up haul or load deviation systems and tensioned high lines. Compact, reducing weight and bulk, which is especially useful during technical rescue. The sheave with sealed ball bearings provides excellent efficiency. The swivel facilitates operations, allowing the pulley to be oriented under load and direct connection of carabiners, ropes, or slings. Compact pulley designed for maximum simplicity in setting up haul or load deviation systems and tensioned high lines for work at height and technical rescue, when weight and size are important factors.

Triple-action opening of the moving side plate is quick and easy, even with gloves
The rope can be installed with the device connected to the anchor
Red indicator provides a visual warning when the moving side plate is unlocked
Special side plate design protects the rope path
Mid-size diameter sheave mounted on sealed ball bearings for great efficiency
Allows pulley to be oriented under load
Ropes or slings can be threaded for easier rigging