the size is not specified, in fact, these boxes are quite small (13 x 6.5 x 2), so, I think they are quite expensive ... I was thinking the same box in appearance I had seen in a store, and I am part of the same dimensions, I was quite surprised by opening the package. But they have pretty solid air (I have received them yesterday, will have to see over time!), The compartments adaptable system is effective, and closing fulfills its role; small items (jewelry for primers) that I have rows remain in their place and do not mix.