Our most spectacularific kaleidoscopic light show ever: Busby Berkeley goes electric. * This 7" long x 1-1/4" dia kaleidoscope (covered in diffraction grating) looks through a slide-able 5-1/2" long acrylic tube full of gloop with multicolor glitter, stars, hearts, moons and other stuff while red/blue/green LED lights morph through their rainbow effects and a white LED spot shines through the whole shebang. * Extremely trippy. Runs on (3) button cell batteries included at no charge because we like you. For ages 3 and up.