This coloured, natural self-hardening clay does not require oven or kiln firing. After drying, it achieves a high hardness and solidity. It is a suitable material for development of creative skills and plastic expression for children from 3 years old and is also suitable for all professional creative art projects. Its natural clay components allow excellent plasticity and the presence of natural fibres of cellulose allows secure drying, free of cracks and fissures - even for the larger pieces.