Water-resistant, non-toxic pencils that layer and blend beautifully without a waxy buildup. The 3.8mm lead diameter contains special oils and binder that allows the pencils to create dense, even strokes without the use of heavy pressure. The broad edge is excellent for shading, while the finely sharpened point creates exquisite detail. The leads are encased in California Cedar for easy sharpening. The 12-color set includes yellow, orange yellow, vermilion, carmine, violet, light blue, dark blue, grass green, dark green, Indian red, brown and black. The 24-color set adds white, dark yellow, bordeaux-red, pink, light violet, cobalt blue, Prussian blue, bice green, pea green, dark ochre, dark brown and gray. The 36-color set features all of the colors listed above plus light yellow, beige, red violet, blue violet, ice blue, sky blue, may green, dark olive green, blue green, gold ochre, light brown and bluish gray.