Mounting compatibility and screw size Uses standard 6 mm M6 screws. The thread adapter has been upgraded to increase friction for a secure, easier installation. Extendable length Internal extension pole extends from 40 cm to 80 cm, accommodating different ceiling heights and throw distances. Suitable for LCD, LED, and DLP projectors. Better materials Constructed from thicker aluminum alloy for increased stability on ceiling or wall mounts. Wellbuilt and durable. Full motion Offers 360° rotation and 120° tilt with a pivot ball head. Upgraded, larger ball head provides better angle fixation for an projection view. Use scenarios Home theater setup: mount on the ceiling in the living room to save space and easily adjust the projection angle for different seating positions. Classroom or meeting room: flexible projector positioning to accommodate different room layouts and audience viewpoints; quick swivel for front and back rows. Event or showroom environments: convenient for portable presentations or signage, allowing rapid height and angle adjustments between sessions.