Craf-t Products Complete Set of Rub On Metallic Embellishment Colors ~All 4 Sets! These Metallic Rub-On accents are fun and easy to use. Excellent for highlighting and accenting your favorite craft project like scrapbook pages and rubber stamping art. Apply with your finger (or soft cloth or sponge applicators) Great for hard type craft surfaces such as card stock, Kromocoat, Vellum, ceramics, wood, etc. Non-toxic and AP approved safe.