Gleevers Umai Borosilicate Glass Kitchen Containers Set with Wooden Lid | Microwave Safe | Set of 3-370ml, 640ml,1050ml | Airtight Container Set for Kitchen | Kitchen Organizer Items and Storage BPA-Free and Non-Toxic: The UMAI food containers are free from harmful chemicals like BPA and formaldehyde, ensuring your food stays safe and uncontaminated. Versatile and Durable: Crafted from high borosilicate glass, these containers are incredibly durable and can endure temperatures of up to 560℃. Use them confidently in the microwave, oven, freezer, and dishwasher. Food-Grade Silicone Ring: Each container features a food-grade silicone ring, providing an airtight seal that keeps your food fresh for a longer period. The silicone ring is non-toxic and safe for food storage. Easy to Clean: The airtight silicone seal can be easily removed, allowing for effortless cleaning and maintenance. Package Includes: 1 x 370ml Borosilicate Food Container with Wooden Lid, 1 x 640ml Borosilicate Food Container with Wooden Lid and 1 x 1050ml Borosilicate Food Container with Wooden Lid