Microwave Safe: The luscious lunch box is made of food-grade materials, safe for reheating meals in the microwave. | Airtight & Leak-Proof: The insulated container features an airtight, leak-proof design to keep your food fresh and prevent spills. | BPA-Free Lids: The lunch box comes with BPA-free lids, ensuring your food remains free from harmful chemicals. | PU Insulation: Each container is double-walled and PU insulated to maintain heat and preserve nutrition. | Liquid-Resistant Cap: The cap is designed to be liquid-resistant, preventing leaks and spills of liquids or sauces.