Airtight: Airtight lid keeps moisture out and locks freshness in thus making it ideal store Dry Food items likes snacks, Biscuits, cookies etc Easy to Open and Close: Silicon Gasket Snug Fits makes it easy to open and close without compromising on the air tight quality Easy Identification: Transparent walls on the containers allow you to view the contents within without having to open the lid and also plan your purchases so you are never out of stock Saves Space: Ergonomic, modular design makes it easy to stack the containers on top of each other Material and Capacity: The canisters are made of Polycarbonate and has a capacity of 240ml, 780ml, 1.3l, 1.8l