Lumsing Universal LCD Adjustable Projector Ceiling Mount Bracket for Epson Benq Optoma ViewSonic Projectors with Height Adjustable 15.9" - 24.5" MAX capacity 66 lbs Loading capacity 66 lbs (30 kg);Adjustable tilt Without extension pole, the mount height is 5.1"; With extension pole, Height adjustable from 15.9" - 24.5" The maximum distance between any two holes is less than 13.7 in/350mm in diameter Compatible with projector has 3 holes pattern or 4 holes pattern Extension pole, standard mounting hardware and user manual are included