Legs adjust up to 11" diagonally for small to medium projectors. Mounting hardware included for most projectors. Screw sizes M3, M4, M5, and M6. Mount has adjustable extension to hold the projector 17" to 24" from the ceiling. All projector ceiling mounts are very universal mounts with tilt, swivel, slide. Small cable path on adjustable mounts, and great for white ceilings.