Set of 3 solid rubberwood frames with easy grip handles contain fascinating glow in the dark panels. Activated by leaving in bright light, when taken into the dark they magically glow in vibrant colours - blue, green and orange. Children will love to watch the glowing liquid swirl and flow as they twist and turn the panels. 15 minutes of sunlight will activate the panels to glow for approx. 6 hours. 18cmL x 12cmW, lens 8cmD. 1yr+.