The Heat N Eat Microwaveable Stainless Steel Lunch Box with Vented Glass Lid transitions from microwave to oven, perfect for heating lunch or cooking dinner. Made of stainless steel, polypropylene, silicone, and semi-tempered glass, it’s lightweight, odor-resistant, and eco-friendly with less plastic. The durable silicone lid locks in freshness and features a steam-release valve. The stainless steel base Is dishwasher, freezer, and microwave safe, and also oven safe. FDA approved and BPA free.