TIGHT LOCKING SYSTEM: These kitchen food storage containers are guaranteed airtight and watertight with a tight locking system and silicone sealing lid. This assures food stays fresh longer. LARGE SIZE: This food storage bin is big enough of large capacity, suitable for loading rice, flour, corn, soybeans, grain, dry goods, etc HEALTHY PLASTIC MATERIAL: Plastic kitchen storage box is made of safe security pp material, and is not easy to damage. Healthy and Environmental Protection. GOOD DESIGN: The front of the plastic food bin has a groove that can be easily taken out of the box. Transparent lid, the remaining amount of the barrel at a glance. And two castor in the bottom for easy moving. CONVENIENCE: This food storage container can be placed on the table or cabinet, easy to use, clean and tidy. and flat design of the container makes some small items can be placed on the lid.