C117 holder can be safely used the on the Seat Rear headrest for Smartphones/Tablets/Pads and More Used (4.5 - 8 ) inch .
Adjustable 360 degree rotation, when you mount it on your car seat, you need to rotate the mount until you hear a "creak" sound, meaning the installation is successful and you can find a perfect perspective to enjoy watching movies, reading ebooks, playing games.
Durable ABS clamp and POM headrest base bracket is wearable . Make sure your tablet will be securely fastened to your headrest pole .The maximum thickness of the tablet is 0.98 inches and the size can be adjusted from 4.5 inches to 8 inches for tablet