Multi Colored Butterfly Glass Teapot. The Butterfly is Rainbow Colors Sitting on Green Grass. The white in the wings is what glows in the dark. Hand Blown Glass-Glow In The Dark. Phosphorus is what makes this glow in the dark. When phosphorus absorbs light during the day it will glow at night. The spout, handle and the top are royal blue. The measurements are approximately 6 inches wide & 4 inches high. It comes wrapped in a black satin lined box for gift giving. This is not the actual piece you will be receiving, if you would like to see the actual piece you will be receiving please email me for photos.