Eco Stars are made with crayons collected from the National Crayon Recycle Program. Each box contains 20 star shaped, solid colored crayons made from 100% recycled and recyclable crayons. Eco Stars are made in the USA, are nontoxic, and conform to ASTM D-4236. Packaging is made from 100% recycled materials as well for a truly eco-friendly gift that your children will love!