Universal Car Back Seat Headrest Mount Holder for iPad 1 2 3 4 Tablets Galaxy Kindle Fire Compatible with most tablets flat PCs with Maximum height of 25cm. Made with high quality durable hard plastic material. Clip onto the back of car seat easily, adjust holding mount height by releasing the locking mechanism. Adjustable ball and socket system allows 360 degree multi-angle rotation and easy adjustment for the optimal viewing angles. Practical design provides easy installation, mobility, security, and adjustability.