The Kiki's Delivery Service Traditional Jiji and Flower Bento Box with Divider has a tight seal with a 4-point lock so spillage is impossible. This bento box is a must have for Studio Ghibli and Kiki's Delivery Service fans. The inside divider keeps food and sauces from mixing, so your food stays fresh and tasty. Neato! Microwave safe with the lid off. Dishwasher safe. Ages 15 and up.