[Material] The car seat back hook is made of environmentally friendly ABS material, 4 pieces per pack. [Intimate design] These compact car seat back hooks are designed with rounded and smooth edges to prevent adults and children from scratching themselves and are safe to use. [Easy to install] With a special semi-open design, these back seat hangers are easy to install in seconds without the need to remove the headrest from the car, just hook it around the headrest pole. [Space-saving] Make the most of the limited space inside the vehicle. You can adjust the hook to any angle and use the hook on the front or back of the seat as needed. In addition, the hooks can be covered for space reasons when not in use. [Versatile to use] These stylishly designed universal back seat hooks are perfect for hanging car items. groceries, clothes, umbrellas, handbags, water bottles, baby items and more to keep your car tidy. [size] 9.5*7 cm [package includes] folder hook * 4