[PP environmentally friendly material] The car seat hook is an environmentally friendly high-quality material, no odor, non-toxic, soft and durable, not easily damaged and deformed. [Main Function] It can be used as a storage space for guests' safety helmets, and can be hung on children's school bags, items, delicious food, water bottles, shopping bags, handbags, wallets, umbrellas, etc. Hidden headrest hook design prevents children from being injured. [Saving Load Capacity & Saving Space] The product has a very strong bearing capacity, is not easy to break, and has excellent load-bearing capacity. The maximum load weight of each coupler is approximately 25 kg (55 lbs), which means that almost all items can be stored in the car. Perfect for hanging cash register bags, trash bags, backpacks, umbrellas and more. After being fixed, just hang it on your bag or luggage, and you can make full use of the foot space. [Easy Installation] The coupler adopts a special semi-open universal design, which is simple to install and does not need to be disassembled. You can use a hanger to fix the head rod of the seat back.