Microwavable Bento Box - Stainless Steel, Leakproof & Durable Convenient microwavable bento box with stainless steel layers. Leakproof and durable for school, office, or on-the-go meals. Perfect food storage solution. https://ennybaba.com/products/304-stainless-steel-lunch-box-bento-box-for-school-kids-office-worker-2layers-microwae-heating-lunch-container-food-storage-box