Item no.: 15277-88 Function and Applications Supplementary equipment set for Basic set Optics 1 (1576-88). Together with the Optics Basic set and optional equipment TESS Optics color mixing, it is possible to performe 70 student experiments in total: Propagation of light (11 Experiments) Mirrors (11 Experiments) Refraction (10 Experiments) Lenses (14 Experiments) Colours (6 Experiments)