Investigate optics and experiment with light! Construct a microscope, magnifier, telescope and periscope with optical lenses, mirrors, lamps, and other materials. Build a total of 15 models: microscope, astronomical telescope, magnifier, erecting telescope, periscope, magnifier with light, slide viewer, sun dial, mirror course, planetary model, optical morse telegraph, fiber optic light effect, light effect with a crank, optical illusion, and partial and full shade model. Includes a comprehensive instruction manual with background information and teaching suggestions. Accu Set Rechargeable Battery and Charger is required and available separately.