Jare Belltight Tupperware 4-Piece Set Excellent Sealing and Durability 1. Strong Sealing Lids: Rubber gaskets are used, providing a reliable seal, making them suitable for food storage. Durable Construction: Made with good quality plastic materials, they are sturdy and maintain their texture and shape even after years of use. 2. Functional Design Date Memory Function: Many have a date setting memory on the lid, which is convenient for managing when food was stored. User-Friendly Size Variations: Different sizes can be stacked for storage, and they can be nested when not in use, allowing for efficient use of kitchen storage space. 3. Heat and Cold Resistance (as a general plastic container) From Freezing to Microwave: Generally, they have a heat resistance of 140°C and a cold resistance of -20°C, and many are suitable for both freezing and microwave heating with the lid on. 4. Retro Design Showa Retro Atmosphere: The colors and design have a charming design reminiscent of the Showa era, and they are also popular as kitchen interior items.