Fits 10 to 15.6 Laptops: Single universal laptop mount fits most laptops and notebooks 10 to 15.6 and up to 9.9 lbs. The stand uses 75x75mm or 100x100mm VESA patterns and secures to a desktop up to 3.5 thick with a heavy duty C-clamp or grommet Articulation: The adjustable pneumatic arm and mounting bracket offer +35° to -35° tilt, 180° swivel, and 360° rotation. Please Note: The counterbalance arm must have at least 2.2 lbs in weight to work properly