Material & Build: Rectangular, heavy-duty stainless steel containers designed for robust, long-lasting kitchen use.Airtight Sealing: Features a flat lid equipped with a central pressure-release valve or vent dial to lock in freshness and establish a reliable leak-proof seal.Storage Capabilities: Ideal for meal prep, organizing refrigerator space, and stacking neatly inside kitchen cabinets.Utility Symbols: The lower section lists clear care icons highlighting its compatibility with dishwashers, freezers, ovens, and food safety standards.