Faber Castel-Polychromous Colored Pencil Set In Metal Tin. Color pencils can be laid down with delicate or strong strokes to unfold their vibrant colors. The leads are bonded to prevent breakage. They can be perfectly combined with graphite pencils. This package contains sixty 3.8mm colored pencils in a wide range of colors within one 7-1/4×12-5/8×7/8 inch tin case. Conforms to ASTM D 4236. Polychromes Colored Pencil Set In Metal Tin 60pc Acid free. Imported Color pencils can be laid down with delicate or strong strokes to unfold their vibrant colors.