After days of extensive searching for reusable lunch boxes that have all the features of these (BPA free, leak proof locking lids, etc.), I decided to purchase two of these. HOWEVER, within one month, all the hinges broke, and there is no way to repair them. We now use rubber bands to hold these together. If I were to do it over again, the Snapware at Costco are a better deal and better product; I would not buy these again unless they fix the hinge connections (currently held together by a tiny piece of plastic).