The Toshiba PBL-UNI is a complete projector mounting system. It allows you to mount your projector to walls and ceilings, even vaulted ceilings. It comes with a 9 inch to 12 inch adjustable height column that can be removed for low-profile mounting. Four double-jointed mounting arms allow you to avoid critical lamp and filter access for improved lamp life. Each arm can be precisely positioned to avoid covering important projector ventilation and access points used for lamp and air filter replacement. Unique leveling barrels allow the PBL-UNI to adapt to any projector base no matter how oddly shaped, to maintain a level installation. Its robust construction allows the mount to positively hold the projector fixed at nearly any angle.