Crystal Stardust Stained Glass Kaleidoscopes, By Artist, Joanne Flatow-Jacobs. Crystal Stardust is 8" long with a 2 1/2" diameter barrel. The oil filled tube is 4" long and 1 1/4" diameter across. Hand made from a beautiful Red Iridescent Glass. A real Value and Karl's Favorite for size and for its beautiful interior color combination of red colors and red variations of color combinations produced by the separate sliding object cell.