This is a 2 gallon litter bag for your vehicle. It is made of durable Oxford cloth and is lined with a waterproof liner. The dimensions are 8.5 x 5.5 x 11.5 inches. The top zips on. It has mesh pockets for accessories on the sides. It hangs by strap to the headrest in our car. We find it better to line it with a plastic Walmart bag. Though with the bag in it, it's not very attractive, it keeps the litter bag from needing to be cleaned as often.