72 UNIQUE & NUMBERED COLORED PENCILS – Our Zenacolor coloring pencils set contains a range of 72 unique and different color pencils, perfect for professional art supplies. NON TOXIC, VERSATILE DRAWING PENCILS – Our high quality and non-toxic (ASTM certified) sketch pencils lets you free your imagination in coloring books for adults relaxation or kids coloring books, drawing or sketching, whether you are professional or just starting out.