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. The opening gate on the swivel makes the pulley compatible with a wide variety of products (tripod, REEVE pulley, PAW rigging plates, and more) reducing bulk during set up.

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
Facilitates operations, thanks to the gated swivel:
Allows pulley to be oriented under load
Accommodates up to two carabiners and allows the use of ropes and slings to facilitate rigging