Package content: each package contains 2 hooks, which can be used as hooks or cell phone holders Material: Made of high quality ABS plastic and silicone rubber to prevent scratches. Innovative design: the phone holder can be recessed freely, the hook can be rotated 360 degrees horizontally, and the hook can be hidden when not in use to ensure safety and maintain the original interior and appearance. Easy installation: semi-open design, no need to remove the headrest , you can finish it quickly in seconds, no extra tools needed Application: It can be used in any utility vehicle, truck or bus. It can be used as a hook or cell phone holder to give you a convenient place to put jackets and bags and make your parking lot more clean and tidy.