I do a lot of crafting that requires many small pieces. I recently purchased two of these, and they are perfect for all my small pieces. I love that they are small, making them very portable. The spaces in the trays hold quite a bit. My only regret is that they only hold very small parts, so some of my larger pieces wouldn't fit. There is plenty of room in the top compartment for tools and larger parts. Overall, I love these little tool boxes and will probably buy one or two more.