Transparent tempera watercolours in block form and with fine pigment content.Use the colours with water and a sturdy brush on white absorbent paper or card. Help young children the first time the watercolours are used: it can be difficult for the youngest children to make a hole in the new, smooth surface of the colour blocks, but this is easily done by running a wet, sturdy brush around the surface until it is no longer smooth. They are especially popular for young children's first watercolour paintings, as the pigments wash off most clothes easily. In addition, the colours have an A eco-label and meet extra stringent requirements regarding environmental impact and possible harmful effects in both children and adults.