Don’t leave home without your favorite beverage and your favorite pop icon. The Vandor Star Wars Episode VII 20 Ounce Heat Reactive Ceramic Travel Mug is made of high quality stoneware with a bold and bright character design. It’s unique heat reactive design changes when filled with hot liquid. This mug features a recessed sliding lid to prevent spills. Hand wash only – Do not microwave. Making retro cool since 1957, legends live on at Vandor – suppliers of hip and functional products for fans of all ages.