The Mini Bento Stainless Lunch Jar features durable stainless steel construction and vacuum insulation with excellent heat retention to keep hot lunches hot and cold lunches cold. It contains a washable vacuum insulated main bowl, two side bowls, chopsticks, chopsticks holder, and easy-to-carry insulated bag. All bowls are microwaveable and the carrying bag reconfigures to half its size when the bowls are empty.