The Kikkerland Solar Chime Rainbow Maker creates a prism effect of sunlight dancing around a room and touches the chime to create music. With the clear case, you see all the insides of the colorful gears and motor while they spin. Simply stick or hang the Kikkerland Chime Rainbow Maker in a sunny window and watch the colorful display. Uses a genuine Swarovski crystal. Beautifully packaged, measures around 10" X 2.5" X 2". Makes a wonderful solar gift.