Fully adjustable keyboard tray enhances comfort in smaller workspaces. Simply loosen single knob to adjust tray height and tilt, then retighten to lock in position. Warning Trak™ keeps mouse from sliding off platform. For both right and left-handed mousing. Includes soothing memory foam wrist supports with Microban® antimicrobial product protection.Package Includes: Keyboard Tray; Arm; Mouse Tray; Wrist Rests