Check the listing for details. RAM-234-3 RAM Tough-Tray Spring Loaded Laptop Holder.... Color: Black, Condition: New. Listed at 81.44 USD. RAM Tough-Tray Spring Loaded Laptop Holder... RAM-234-3 Genuine RAM Products! The RAM Tough-Tray is spring loaded expandable tray that can accommodate 10 to 16 inch wide laptops. The tray includes four side clamping arms with rubber grips to keep your laptop secure in any rugged environment. These arms can be moved both vertically and horizontally, allowing a custom fit for varying thicknesses of laptops and the freedom of not blocking ports or drives. Hole patterns on perimeter of tray facilitate the mounting of additional RAM systems to support GPS, PDAs or other electronics.hardware included Tray Assembly Hardware(4) #10-24 x 7/8 INCHES Machine Screws(4) #10-24 Thin Nylock Nutstray dimensions Width Range: 10 INCHES - 16 INCHES Side Arm Clamp Height: .5 INCHES - 1.75 INCHES Tray Depth: 10 INCHES Tray Thickness: 2.125 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES materials High strength compositepackaging type Poly BagWeight 2.61 lb hardware included Tray Assembly Hardware(4) #10-24 x 7/8 INCHES Machine Screws(4) #10-24 Thin Nylock Nuts tray dimensions Width Range: 10 INCHES - 16 INCHES Side Arm Clamp Height: .5 INCHES - 1.75 INCHES Tray Depth: 10 INCHES Tray Thickness: 2.125 INCHES hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES materials High strength composite packaging type Poly Bag Weight 2.61 lb