Fellowes Office Suites Deluxe Keyboard Drawer with height adjustable keyboard tray. The mouse tray mounts to left or right and slides under keyboard tray for your convenience and the keyboard stores under the desk when not in use to save space and keep your home or office tidy. Integral soft touch wrist rest keeps your wrist at optimum position to prevent aches and strains associated with extended desk use.Keyboard tray installs at three different heights to suit preferred work position, mouse tray mounts on right or left side of keyboard tray and stows underneath when not in use, features memory foam wrist support, adjusts to 44/54 or 64mm below the desk