The 12' electric backdrop system is mounted to the ceiling. If you have a drop ceiling proper supports for reinforcement will be required, You will need 10" of mounting space in addition to roller lengths. Backdrop lift system can be wired for up to 2 additional roller units. * Quick-Release Roller Connections * Handles canvas or paper * AC/DC Gear Motor * Lift capacity- 80 lbs. * Up to 2 Roller Units * Remote Control Switch Box with 12' cord * Full 2 yr. warranty on parts and labor.