American Crafts-Shimelle Starshine Rub On Pens. Easily add designs and fun patterns to your paper crafting projects! This 7x3-1/2x3/4 inch package contains two rub-on pens in two designs. Acid free. Archival quality. WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. Imported.