Excellent Compatibility This holder is compatible with all 4.7-12.9 inch tablets and smartphones. The internal anti-slip rubber and clamps equipped with EVA soft material keep your device stable and secure. Flexible Design 360-degree rotation allows you to adjust to any angle. Simply extend the leg of the rear seat headrest mount for quick installation. Convenient Use The universal headrest mount enables hands-free viewing, making it ideal for watching movies, reading, playing games, or listening to music during long car journeys. It also helps keep passengers entertained. Easy Installation Easily install this holder onto your car headrest. The buckle provides a strong grip, firmly securing the mount without concern for rough roads.