The IPM3-HD001 custom fit car seat rail mount fits the Apple iPad 4, 3, and 2. This mount package includes Arkon"s Custom Fit Apple iPad Holder and Heavy-Duty Aluminum Car Seat Rail Mount with 22" Adjustable Arm. The durable plastic holder is made specifically for the iPad 4, 3, or 2 and measures just over 9.5 inches high and 7.3 inches wide. This custom holder does not fit the iPad Original, iPad Air, or iPad mini. The custom holder provides support around the edge of the iPad, and cutouts are provided for easy access to the camera, power button, and power outlet. To install the iPad, just snap the device into the holder. This holder is not compatible with protective cases. The car seat rail mount is made of strong aluminum, and is ideal for those who need easy access to their iPad but prefer mounting it somewhere other than the windshield or dashboard. Use a socket wrench to install the mount to the car"s seat rail. Loosen the passenger seat track bolt, insert the included seat track bolt bracket, and then retighten the bolt. Bend the 22" adjustable arm and rotate the swivel ball adapter head for 360-degree rotation for exact positioning of the iPad. For a seat rail mount featuring a custom holder for the iPad Air, see Arkon Model IPAHD001.