Alloy material, compared to the general plastic hooks more fashionable high-grade, strong and durable 66Ib/30kg super load-bearing, no deformation, no breakage.smooth and delicate surface without burrs, with the original silicone, can well protect your car will not be harmed. Round hole design, although installation is a little more troublesome. But it is safer, it is not easy to fall off during the driving process, and the load-bearing is stronger.Need to disassemble the headrest to install on metal headrest post. This car seat hook converts your car's headrest into a convenient storage space to hang Groceries, Clothes, Umbrella, Handbags, Kids Toys, Schoolbag,Purse,Baby Supplies and Much More. Our Hanger fits almost every Car, SUV, Van, Truck Heavy and duty metal car hangers add space-saving storage to the front or back of a seat.Organizes back seat clutter and opens up seat, floor and leg room. Swing hook around to either the front or back of the seat to use as desired. The car headrest hook is perfect to keep your car well organized for an enjoyable ride. No more leaving shopping bag things on the floor or seat rolling around and spilling. Item NO.81554967Item NO.107245214