The RAM Tough-Tray is spring loaded expandable tray that can accommodate 10 to 16 inch wide laptops. The tray includes four (4) side clamping arm with rubber grip feature. These arms can be moved both vertically and horizontally. This allows for a custom fit for varying thicknesses of laptops and the freedom of blocking ports or drives. PDAs or other electric Tough-Tray Dimensions: Tray Depth: 10.0" Tray Thickness: 2.125" Tray Width (Expansion): 10" to 16" Side Clamp Arm Height: 0.5" (min) to 1.75" (max) Note: The Tough-Tray is compatible with laptops that have 17" screens.