This is a Manfrotto Complete Deluxe Autopole Kit with 3 Expan Drives.
It is a background support system that will allow raising and lowering
up to 3 cored backgrounds without climbing a ladder. The Deluxe Auto
Poles are held in place between a floor and ceiling as high as 12 feet 5
inches with a powerful spring lock. 3 Expan Drive Sets work with their
plastic color coded drive chains. The Expan Drives are held by the
background hook set, which is clamped to the Auto Poles.
If your backgrounds do not have cardboard cores, simply add the Alu-Core crossbars, available separately.