These containers are great, I have trouble finding this size in stores so was very happy to find them on Amazon!  I have 3 dogs, 2 of them with stomach issues that require feeding them just the right amount at each meal.  I pre measure their food and store in the frig in these containers.  Regardless of what you use them for, I can tell you that they hold up well when repeatedly used and washed.  I've had some of these for several years and no cracked lids, so made well.  Worth the money for sure.