Clear stamps are ingenious! They take all of the guess work out of stamping! Heidi Swapp Introduces some of her favorite, most versatile words for scrapbooking, card making and paper crafting. Each package includes 1 clear stamp. Acrylic blocks sold separately.  Carefully peel the stamp off the plastic sheet and apply to an acrylic block.  The clear plastic allows for precision placement.  After use, clean with soapy water or stamp cleaner and reapply to the plastic sheet when dry.  Stamp inks are recommended, but also try with acrylic paints for anytime, anywhere stamping.