The popular Stockmar wax colouring-blocks are made of the same materials as our wax crayons. They therefore have the same excellent properties and are available in identical colours. Stockmar wax crayons are non-toxic and meet the highest artistic standards. The crayons use of pure beeswax as a binding agent, results in brilliant translucent colors. Because they are mixed with wax, the colours are able to be used in a wide range of interesting colouring techniques - more than any other colouring material. The natural transparency of the wax and the lack of additives result in a high degree of opacity like that of watercolours. Made in Germany