Known for their durable and eco-friendly stainless steel lunch containers, PlanetBox lunch containers are a great option for kids and adults like. Made of stainless steel. the PlanetBox Lunch Containers are built to last and dishwasher safe. Featuring easy to open latches, the PlanetBox Lunch Containers have separate compartments, making it easy to pack and enjoy healthy and delicious snacks and meals. PlanetBox also carries a wide range of magnet sets, for fun and customizable lunch containers.