The Creative Crayons Classroom box of 800 contains 100 of each of the 8 bright and bold colours including green, orange, yellow, blue, brown, red, purple and black all packed into a handy divided storage box. These crayons are washable and non-toxic and are perfect for use in the art room and classroom. They are a great drawing instrument for children and adults alike. They are ideal for blending and shading and can be used together with markers, paints, pens and pencils. Crayons measure 8.7cmL x .07cm diameter.