I discovered this last week and wow, its great! I was cleaning in the garage and went to throw out some old fishing tackle boxes. As I looked at them I realized how perfectly all the little fibers, eyelets , brads and even setting tools would fit perfectly inside. My husband also has small fishing boxes that are identical to plastic divided craft trays with tops. Except with one difference they cost a lot less new at fish stores plus you can find them at garage sales and thrift stores at great prices.