Wax crayons, high resistance, in a cardboard box, 12 colours. Wax-based colour, leaves a vivid, glossy tone mark. Smooth and easy to use, suitable for artists of all ages. It is eco-friendly because it produces no waste, and lasts over time. It can be used on paper or cardboard and is best on rough paper. Colors can be applied in successive layers that can be overlapped. Does not dirty your hands.