Broad compatibility: Fits large, single screens up to 34 inches diagonal and 7 to 25 pounds; compatible with VESA patterns 75x75mm and 100x100mm Multiple mounting options: Includes arm, extension, base, 13-inch pole, plus two-piece desk clamp for surface edges 0.63 to 2.6 inches thick; grommet mount available as a separate accessory (98-035) Workspace adaptability: Raise your productivity and increase your workstations flexibility with 13 inches of monitor lift, rising 22.1 inches from the worksurface; customize how you work and collaborate with 360 degrees of rotation and 75 degrees of tilt Maximum positioning: The sky is the limit with the taller pole, offering up more range and increased visibility; folds back to reclaim desk space and fits under storage shelfs or cabinets; upgrade to a dual monitor setup with the sturdy LX Arm, Extension and Collar Kit (98-130-224) accessory Built to last: Extensive quality testing ensures your display stays stable and secure; Ergotron prod