This car headrest tablet holder is made of high quality ABS plastic, aluminum alloy, and silicone. It features a 360 degree rotation and adjustable length, making it easy to use and install. The holder is compatible with 4.7-12.9 inch tablets and can be adjusted to fit different car headrests. It is easy to install and does not require any tools. The holder is perfect for watching movies, playing games, or browsing the internet on the go.