Create a rainbow of colours and crazy patterns by overlapping the lenses. A really fun resource which encourages children to explore and investigate colour, ideal for home use and perfect for schools. Mix colours to create rainbow effects, includes 2 x Blue, 2 x red , 2 x yellow and 2 x bug eye lenses. Easy change lenses slide in and out of slots, includes colour mixing guide. Suitable foe ages: 4 years +.