The containers are completely air tight and leak proof. You can also write on the container with a non-permanent marker. This helps to specify the contents, date and owner. This version has removable dividers. 7 5/8" across, 2 1/8" deep. Great for adult or children's lunches.
They are made from #316 (18/1) food grade Stainless Steel, (The best of the best!) and the lid has a silicone seal.