Thick, strong leads. Richer, smoother colors! Non-toxic. Long-lasting; Real wood; Art quality. Rose Art colored pencils are super for coloring, map-making, sketching, drawing, and detailing. Pre-sharpened, ready for creative ideas, these pencils lay down bright colors without crumbling and melting. So start having fun and express yourself with brilliant color! Conforms to ASTM D4236. Made in China.