Tempera cakes are a solid, convenient source of brilliant, opaque watercolor. Tempera pucks are non-toxic paints that are perfect for creative fun or for school, helping kids safely express their creativity. These 2" diameter cakes are ideal for distribution and collection in a classroom setting. Colours can be mixed to produce beautiful intermediate hues. Long lasting and vibrant colours will not deteriorate in storage and are instantly usable with the addition of water.