Height adjustable unit moves keyboard and mouse off the desktop to save workspace.Features 3 height adjustments to suit preferred work position.Mouse tray mounts to right or left side of keyboard tray or stows underneath. Product contains 100% recycled materials; Sturdy, impact-resistant tray fits standard keyboards; 23 ½” wide space required for installation FeaturesKeyboard stopper holds keyboard in place while you work, Height adjustable unit moves keyboard and mouse off the desktop to save workspace, Mouse tray mounts on either side of keyboard tray or stows underneath, Keyboard tray features three height adjustments BrandFellowes Model9140303 ColorBlack Manufacturer Part Number9140303 Assembled Product Dimensions (L x W x H)11.60 x 22.00 x 2.30 Inches