Crimson JSK2-30S Three adjustable models position center of projector to a maximum of 16/30/55" from the wall. Ideal for projectors weighing up to 50 lb. Quick and secure hook in place arm attachment with +/-5º height/pitch adjustment at the wall plate. Internal cord management for easy wiring and a clean look. Compatible with all Short throw dual stud projector mounts with 1.5 NPT threaded interface.. Built-in roll, pitch and yaw adjustments make alignment fast and easy. Quick release mechanism allows Short throw dual stud projector kit to be easily removed for service. Compatible with all 1.5 NPT threaded interface.