Description Are you looking for a set of professional, yet affordable light reflection demo tool? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional light reflection demo tool must meet you needs. It is one of the best choices for you. Features - Color: As shown. - Size: 26 x 12 x 0.3 cm. - Material: Plastic. - Note: Without Battery. - Reflection, diffraction, and refraction kit for study of how light travels - Experiments with instructions for hands-on learning - Teacher's guide for instructional use - Put education in fun, cultivate scientific knowledge - Scientific experiment toys exercise children's practical ability - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!Package list: 1 set x light reflection demo tool