My Daily Kitchen Experience with Container Box for Fridge The design of container box for fridge is very user-friendly. They're usually made of clear plastic, which allows me to see at a glance what's in each box without having to open them. This design not only saves me time looking for ingredients, but also reduces the number of times the refrigerator door opens and closes, thus helping me save energy. https://www.zjjiuli.com/news/egg-storage-containers-box-preserving-freshness-and-enhancing-convenience.html