Child-size, great value glasses that guarantee colour-mixing fun! Engage young scientists with bright colours and chunky pieces!   Chunky primary science glasses are the ideal size for children Slots in plastic glasses allow coloured lenses to be easily changed Can insert two lenses per eye for colour mixing activities Fun way to encourage early learners to explore primary and secondary colours Set includes: Eight lenses - two of each: red, yellow, blue and distortion (to see like an insect) Colour mixing activity guide   Recommended for children aged 3+