【Perfect After-Sales Service】 If for any reason you are not completely satisfied with your purchase, or encounter any problems during use, you can click the "contact seller" button to send an email to us, and we will provide you with a satisfactory solution within 12 hours. 【High Quality】 These glass food storage containers are made from high borosilicate glass, glass lunch containers with lids designed to withstand temperatures from -22°F to 392°F. Ideal for both freezing and heating, providing a reliable solution for storing and reheating food in your fridge.(Note: Before putting it into the microwave/ oven, please take off the lid.) 【Air-Tight & Leakproof】 The lids come with innovated hinged-lids and makes it easy to flip open & shut, ensuring zero leaking or spilling, never endure spilled soup or sauce. And the silicone seals can be removed to wash easily. 【Easy to Clean】 Made from high-quality glass, these glass meal prep containers are easy to clean, dishwasher-safe, and resist staining, making them convenient for everyday use. Additionally, each set comes with 2 complimentary cleaning sponge, making maintenance even easier. 【Versatile Usage】 These glass food storage containers are perfect for meal prep, lunch packing, and leftovers. Their 680ml capacity makes them suitable for a variety of foods, ensuring versatility in your kitchen.