Sold as 1 Each. Dual LCD Computer desk stand for 30' screens. 19.8lb load capacity per monitor. TAA (Trade Agreements Act) compliant. Height adjustable gas spring arm with 11.5' of height adjustability. Supported by manufacturer's limited lifetime warranty. Rotate portrait-to-landscape, pivot 360 degrees, and tilt 30 degrees. Compatible with the Mount-It! Modular Monitor Mount Series that allows you to quickly create custom desk setups with quick release, interchangeable parts.