The Standard Tray System features a simple in-line mouse design that is intended for use in straightaway work center applications. The in-line design makes it possible to easily switch the keyboard and mouse configuration to accommodate left or right handed users. The tray is constructed from durable .625″ melamine and features a built-in document holder and cable manager. The system includes our Pinnacle 2 Value keyboard arm with smooth operating nylon glides and 17″ or 22″ tracks. It also comes with a lifetime warranty that will provide years of reliable, maintenance-free performance.