I recommend this article .. I 'lai bought because I take my milk, and I freeze some other I use for baby bottles if I am not available. At first very nice first, nice, well visible scale. Except that every day we realize that closing the lid requires technical graaaaande, we must be careful how it is screwed ... otherwise it runs ... To freeze they certainly are stackable but I advise to take conservation bags ... more suitable in this case. So I do not recommend this article.