You should take time when making dumplings. Set the time on the lid and you know the expiration date of the ingredients like your vest pocket. Stack unlimitedly, solve storage problems, stack layer by layer and place in an orderly manner. The buckles sealed on both sides can understand your life needs and are also very suitable for placing food such as steamed rolls next to dumplings. The extra layer with large capacity can hold 40 sizes of dumplings that are suitable . Mobile, labour-saving and multi-layer stacking, portable, practical storage, more non-stick and unbreakable storage, fresh floor patterns, fresh storage, no cords made of transparent, visible materials, easy to find things, ease of use and health.