Parent-child tour/long-term preservation/science popularization area It is easy to take out the baby's food, drink, pull, loose and go out under a bag. Scientific partitioning, can be controlled without waiting, visual partitioning, at a glance. Scientific and reasonable storage, do delicate treasure mother, double structure under the storage of independent greenhouse. Reduce heat loss, maintain the temperature of food, hard lock temperature bottom bag preferably multi-layer material.