Welcome to our store! This bento set is made of high-quality food-grade thickened PP plastic shell material, which is high-temperature resistant, wear-resistant, odorless, and harmless to your health. It features good workmanship, making it sturdy and durable to use. The set includes four stainless steel bowls that are rust-proof, safe, and hygienic for student use. Each bowl measures approximately 10.4 x 6 inches and has a volume of 24 oz, totaling 96 oz for the entire set. The hollow and anti-scald humanized design ensures safe handling. The lid comes with a thickened buckle that perfectly matches each of the 4 bowls, allowing you to connect them to form a 4-tier bento. You can also use one, two, or three tiers as needed for convenience. The compact 4-tier design allows you to store more food, especially designed for travel. The lid includes a rubber seal for leak-proof water transport. The package includes 1 x 4-Tier Bento. Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We do our best to provide you with satisfactory after-sales service.