Conserve valuable desktop space and improve the ergonomics of your workstation. High-impact plastic tray holds keyboards up to 20-5/8w x 15-1/2h. Built-in wrist rest features handy cut-outs to hold supplies. Three different height selections for custom comfort. Easy installation with hardware included. Color: Black Capacity (Weight): N/A Workstation Type: 90° Corner Diagonal Straight Height (+/- Desktop): +0"/-Up to 4".Unit of Measure : Each