Gas-Spring Height Adjustable Wall Mount for 40" to 70" LCD/LED/Plasma TVs — Full Articulation, VESA up to 400x400, 17–66 lbs

This wall mount uses a counterbalancing pneumatic (gas) spring that makes vertical positioning effortless — the mechanism adapts to the weight of your TV so you can raise or lower the screen smoothly. It is suitable for standard wall installs and above-fireplace applications and mounts to wood studs or concrete/brick. Note: the counterbalance requires the TV to weigh at least 17 lbs to function. Compatibility: Designed for 40" to 70" flat screens with a supported weight range of 17 lbs to 66 lbs. VESA patterns supported: 75x75mm, 100x100mm, 200x100mm, 200x200mm, 300x200mm, 300x300mm, 400x200mm, and 400x400mm. Movement and adjustment: Full articulation provides +10° to -15° tilt and +90° to -90° swivel, plus a 12.5" height adjustment range so you can find the ideal viewing position from many angles. Installation: Comes with all necessary hardware and clear step-by-step instructions to simplify assembly and mounting.