Vulcan-X 4 Pcs Car Seat Back Hook Storage Hanger Bag Holder for Purse Cloth Handbag Grocery (Black) Size: 4.25L* 1.4W * 1.25H, Mounting holes diameter: 0.5. It holds up to 17 lbs or 8 KG. Designed by Round hole shape , easy to install and need to disassemble the car headrest. Not suitable for suvs, minivans, pickup trucks, vans, trucks. Slim Size, Does not occupy a space; Durable and Environmental. Converts your car's headrest into a convenient storage space to hang groceries, handbags, water bottles, kid's toys, baby supplies , etc.