3m Adjustable Notebook Platform Adjustable Notebook Computer Platform, Mousing Surface and Wrist Rest Positions notebook computer at optimal wrist position, while raising screen for better viewing. Nonslip platform keeps notebook securely in place. Includes 3M™ Precise™ Mousing Surface for accurate mousing and 3M™ Gel Wrist Rest for wrist comfort. For right-hand mousing. Manufacturer’s lifetime warranty. 20w x 10-1/2d x 1-13/16h. Black