Stockmar Crayons, Single Color, Set of 12 Colors: Yellow Green and Blue, set of 2 colors - Brand: Stockmar - Colors: Yellow Green, Blue Thank you for viewing. I am selling these as they have been stored at home, unopened and unused. Product Description: These crayons are made from natural beeswax, safe for young children. They are characterized by their high transparency and beautiful colors. You can experience the beauty of the colors themselves, and create subtle, deep intermediate colors by layering multiple colors. They do not become sticky or muddy when layered. Also, they do not produce flakes when drawing, and are durable because they are hard to break.