The PRB-16-01S is a universal ceiling mount for projectors up to 30kgs/66 Ibs. Solid ball-joint structure offers 360  rotation and 20  tilting for multi-angle viewing. It offers flexible projector positioning with four adjustable support arms that can fit a wide range of mounting holes. You can easily use the easy-grip knob to adjust length from 520mm to 600mm to meet different needs. It features an adjustable height extension channel and a versatile ceiling plate that can mount to traditional or beveled ceilings. Integrated cable management system conceals and protects cables.