Design: Hidden design, safe, avoid children and adults abrasions, this product is wide and deep enough to hold your wallet, backpack, and so on. Organize the Space: The headrest hook organizes your rear-seat sundries and helps you keep the car clean and tidy. It is an excellent storage space for hanging groceries, handbags, wallets, school bags, umbrellas, water bottles, shopping bags, baby products, and so on. Universal: Suitable for most cars(installation size: headrest rod diameter within 14.5mm). Each item can hold up to 20kg. Simple to Install: The side-opening design is easy to disassemble and install, without any tools, just hang the hook on the headrest rod. But the diameter of the headrest rod is 14.5mm.