The Ducame 4 Roller Wall Mounting Background System Without Autopoles and Crossbar will support three background paper drive sets. These hooks can be screwed or bolted to a wall or ceiling. This design will enable you to quickly and efficiently change your backdrop. You can also screw these hooks to the 1/4-20 tap on optional super clamps. In this way, the super clamps can then be secured to auto poles instead of bolting the hooks to your wall.
2 x Four-fold Hooks for Background Paper Drive
3 x Background Paper Drive Set (Pair)
4 x Chains