Anchor Universal Ceiling Mount is mainly used in multi-media system, such as conference meeting room, studio, training center, multi-media classroom, lecture room etc. The projector ceiling mount is firm, durable, flexible and suitable for more than 90% of projectors in the market.Made if refined quality aluminum allow, easy to assemble, upright or opposite installation of long or short clutches. Height adjustable. Auxiliary auto dismantling wrench. Easy to assemble, upright or opposite installation of long or short clutches Ability to close fit to the ceiling or use the drop bar.