Jerome kaleidoscope artist, Kathleen Jarvis has created a small marble scope, vibrant with color and reminiscent of the days when Jerome was a bustling copper town, full of miners and saloons. A wonderfully textured copper and brass body holds a three-mirror system, producing an infinite image. This scope comes with a manufactured marble, which you may interchange with other marbles of similar size. It measures 5" long and comes with the wooden stand shown. The marble is 7/8".