Capacity: 500ml Type: Thermos Flask Bottle Thermal insulation performance: 5-6 hours approx. A thermos mug for children that is very convenient to use and makes a great gift for children. A good choice for children going to kindergarten. The brightly colored thermos mugs come with a silicone tube for drinking, and the hanging straps are perfect for kids to use. It is made of stainless steel (Sus-316), high quality and durable.