Purchased a standing desk so no longer need this. Original purchase price $585. Price $300 obo Desk not included. From the manufacturer: -Broad compatibility: Fits two screens up to 24 inches diagonal and 6 to 12 pounds each; compatible with VESA patterns 75x75mm and 100x100mm -Room to work: 15 x 23-inch worksurface holds all your desktop essentials; large 27 x 9-inch keyboard tray easily accommodates a standard keyboard and mouse; keyboard tray offers back-tilt functionality, moves in tandem with worksurface and is positioned 6 inches below it, promoting comfort and ergonomics -Ergonomic workspace: Fine-tune your sitting or standing position with 18 inches of worksurface lift plus 5 inches of independent screen height adjustment; adjusts smoothly from minimum monitor height of 8.7 inches to maximum monitor height of 31.5 inches; install screens at a 3 or 8-degree upward angle for optimal viewing -Easy setup: Includes height-adjustment column, desk clamp, crossbar, two monitor pivots, worksurface and large keyboard tray; desk clamp attaches to desktops 0.47 to 2.4 inches thick; variable weight setting enables effortless movement; individually adjust monitors and keyboard tray for personalized comfort