Design For Living Perfect Seal Food Storage Container, 4-3/4-Quart, Blue Modular design saves cabinet and pantry space 4-3/4 quart plastic food storage container Airtight silicone seal, clear plastic keeps content visible for easy selection The perfect seal is a patented technology available in 9 open stock sizes to keep dry foods fresher longer with its airtight seal Lid is fully dishwasher safe; BPA free