I originally bought a few of these to use for pet food as the product name indicates. They are the perfect size for cat food, dog food and bird seed which I use them for. The wheels make it convenient not to lift heavy bags of seed to fill the feeders. They worked so well I bought a couple more for my boys rec room and they've filled them with legos, action figures and other things. It keeps them organized, they can see through them to find what they want and they line up nicely against the wall. Lots of uses, a really good value.