Compatible with large monitors: Fits single flat or curved screens up to 42 inches diagonal and 7 to 25 pounds; compatible with VESA patterns 75x75mm, 100x100mm, 200x100mm and 200x200mm; separate accessory VESA Bracket Adaptor Kit (97-759) fits larger VESA patterns Multiple mounting options: Includes arm, extension, 18.7 inch pole, VESA brackets, mounting hardware; two-piece desk clamp for surface edges 0.8 to 2.5 inches thick and grommet mount for installation through a surface hole Sit or stand: Offers full monitor motion with 20 inches of lift, screen rises 31.25 inches above the desktop providing the option of sitting or standing throughout the day; customize how you work or collaborate with 360 degrees of rotation and 75 degrees of tilt Ergonomic productivity: Quick and easy positioning accommodates ever-changing needs; arm folds to 4.9 inches from wall to reclaim space; built-in cable management streamlines your workstation; add an LX Sit-Stand Keyboard Arm (45-354-026) for