Note that the kaleidoscope has a crystal top allowing light to enter the object cell. The kaleidoscope itself has a very nice smooth turning separate oil filled cell. The cell is filled with nice natural and bright colored pieces including natural seashells, pearls and gem stones in natural ambers and teal colors. The optics are fantastic and include a magnifying lens and nice large eye opening for superior clear optics. Dimensions are approx 8 1/8 inches tall by 2 Inches at the widest point the eyepiece. Highly recommended also ! Collect all three !