This listing is for one double pulley that was a store return. The pulley was used once and shows minor signs of wear.
After rigging a double pulley system properly, you can easily raise and lower aerialists by hand to create dynamic flying acts.
With a correct double pulley system you can lift 4 times as much weight with the same amount of work.
These pulleys feature: Rounded edges preventing rope friction and wear, swivel-open side plates allowing extremely easy use and setup, large attachment holes for multiple carabiners, enclosed stainless steel bearings for greater durability, and independent wheels for multiple pulley systems.