These boxes are easy to put together and sturdier than the really cheap ones--good for hanging file folders as long as you are not moving them back and forth a lot. Just for storage. The one ding is that the lids don't stay together as well as they should like the little tabs are not big enough so you may need to use a little tape to get them to stay together.
These are the perfect size and weight for packing moving and/or storing not only heavy items like books but also fragile keepsakes. They're clean easy to assemble and once filled they stack easily. Recommend most highly!
Solid good handy and easy to assemble. They help a lot with my mess of file folders in the file cabinet which go back 15-20 years. Time to free up needed space and move older files into well-labeled file boxes.