【Material Quality】 - The storage containers are made of food grade 18/8 stainless steel. It leaves no odor after application and is hygienic and safe.【STACKABLE FOOD CONTAINER】- Due to the different sizes, the four bowls can be stacked on top of each other, so that they take up very little space.REUSABLE CONTAINERS】 -The bowls are not only suitable for preparing food such as pasta salad, salad, whipped cream, etc., but also for displaying fruit & rolls.【DISHWASHER SAFE】 - Thanks to the high-quality stainless steel, it is possible to sort the bowls in the dishwasher without rusting or scratching. It is safe to wash the lids on the top rack of the dishwasher, but prolonged exposure to high temperatures can deform the silicone sealing strip around the edge of the lid. Please hand wash the lids as often as possible.【ECO-FRIENDLY & LEAK-PROOF】- The hermetic silicone seal means you can use it as a food container with no odors and air leaking in and out! Keeps food fresher for longer.