Heat-resistant glass food storage containers, set of 4, airtight glass containers, glass food storage containers, meal prep, microwave and oven safe, BPA-free, square 320ml, 800ml, rectangular 370ml, 1050ml [4-point lock heat-resistant glass containers] The glass airtight containers come in 4 sizes: 370ml, 1050ml, 320ml, and 800ml, making them perfect for everyday cooking, storage, and bento box preparation, depending on the dish and purpose. These glass food storage containers are widely compatible with meal prep, refrigerated storage, and rice storage. Package weight: 1.9kg, package size: 23*18*16cm. [Excellent airtightness] The lids of the glass containers have an improved 4-sided lock design, rotatable 180°, with complete sealing at the four corners and silicone packing, preventing leaks and odor transfer. The food does not come into contact with air, keeping the freshness of prepared meals, rice, vegetables, and fruits for a long time. [Microwave-safe & easy to clean] Heat-resistant temperature -40℃～500℃! It can be used for a wide range of applications, from refrigeration and freezing to microwave and oven heating. The heat resistance difference of the glass container is 120℃, so you can serve food directly on the table after heating, even if it has been refrigerated or frozen. Dishwasher safe for easy cleanup! (Note: Remove the lid when using the microwave/oven, not for direct fire). [High-quality materials] Made of high-quality borosilicate glass, boasting excellent performance in strength, transparency, and stability. It is impact-resistant and scratch-resistant, making it suitable for storing dishes containing acids and salt. The transparent body of the food storage container allows you to see the contents at a glance, so you can easily check the ingredients in the refrigerator even on busy days. [Stackable storage] The heat-resistant glass container set can be stacked for storage, allowing you to organize your kitchen and refrigerator neatly even in limited spaces. BPA-free, complies with food sanitation standards.