Mobotron MS-426-SSBundle Deal Standard Vehicle Laptop Mount + Screen Stabilizer Sure-grip laptop deck with extendable rear and front sliding bracket, the deck can easily secure Hand-control pan - allows to adjust tray vertically (180) and horizontally (360) Two quick-release levers and knob-screws allow users to adjust deck Standard aluminum tube (23mm) - can be easily adjusted up to 24 height No drilling- make sure the passenger seat rail is flat and the bolt is easily accessible and visible