Good medium strength box containers. Great for storing childrens' toys and achoolwork from nursery thru college. Easy to assemble. Lids can be a bit fragile and the handle openings may deform and begin to tear when lifting a packed weight of >50#'s. Stackability is good and useful for travel in van or SUV.
I bought these to stack on top of the larger size to store all my Christmas decorations. They all worked wonderfully. They are strong and went to together quickly.