Key Features :
i : A great hands-on manipulative for use on the TickiT™ Light Panel (sold separately) to help children identify a range of colors and shapes.ii : Place on a light panel to see what happens when different colors are placed on top of one another or in overlapping patterns.iii : Size: 2cm diameter. Ages 3+.iv : Used on a light panel, this manipulative will provide starting points for talking to children about colors, light, transparency, translucency and opacity.