PERFECT FOR CHILDREN'S SCHOOL LUNCHES: These stainless steel containers are perfect for packing lunch or snacks, sandwiches, fruits, vegetables, and desserts. They are perfect for parents who want to keep their children full during trips. NO REUSABLE PLASTIC CONTAINERS: These are made of food-grade stainless steel material, lightweight yet durable, last for years and still contain no plastic, odorless. LEAK-PROOF SILICONE LID: The silicone lids seal well, they are flexible/bendable, fit snugly and are leak-proof. CHILD-FRIENDLY: The silicone lids are easy to put on and take off, children can remove and reattach them without problems. The lids are double-lipped silicone and fit well without a struggle, but are also waterproof and secure enough to keep food covered/protected. KEEP FOOD FRESH: Send cut fruit and vegetables to school with your children as snacks, the food will stay absolutely fresh. DISHWASHER SAFE: These containers are dishwasher, freezer, and oven safe. Rounded corners are easy to clean. Note: They are NOT microwave safe. RECOMMENDED AGE LIMIT: 3+ years