Hide & Slide is an economical keyboard tray solution by Knape & Vogt is intended for occasional computer users. It is a height adjustable ergonomic keyboard holder hich features a contoured palm rest with a compartment for pens, pencils and supplies, plus a mousing surface that slides below the tray when not in use. For added convenience, the entire unit slides easily below most work surfaces on precision ball bearing drawer slides. Adjustable mousing to a left or right side neutral zone allows for better ergonomic positioning. This product is designed with flexibility in mind without losing focus on ergonomics.