Stockmar beeswax crayons, beeswax modeling clay, transparent watercolors, and decoration wax are manufactured according to strict food standards as proof of their safety. The colorants used are completely harmless and do not dissolve. They are selected based on strict criteria, including vivid colors, translucency, heat resistance, high fixity, and fade resistance. The remaining ingredients, other than the pigments, are also required to meet high quality standards, and their safety is verified. The beeswax used is a natural material, so it is greatly affected by the natural environment. It is becoming increasingly difficult to find uncontaminated beeswax year by year. Despite this, we do not compromise and conduct regular inspections to ensure that our products are always completely harmless. Because of these reliable products, they are popular in many schools in Europe, not just Steiner schools. They have been used a bit, and there are some scribbles on the can, but they can still be used without any problems. We hope you will find them useful.