This is a lighted rotating base for crystal blocks, cake decorating and keepsakes, The base has a mirror and lights that change color automatically Can also be used to decorate cakes,allows you to place your favorite toy or figurine on the cake or in area between layers of wedding cake. Includes A/C adapter.'' Batteries not included. Rotating feature works only with AC use. Visit our website EicStore.com for other great products. Size 3 inch diameter and 1.5 inches tall.