HOT OFF THE PRESS-Acrylic Stamps Sheet: 5-1/2x7in. Creative messages made easy! They are easy to use; simply peel a stamp off the backing sheet; place it on an acrylic block; ink it up and stamp! Clean your stamp with a stamp cleaner or soap and water; then return it to the sheet; positioning it to match the printed image. This special acrylic will not turn yellow. These stamps are perfect for creating cards; tags; scrapbook pages; mini books and other paper crafts. The size; shape and number of stamps per package varies by theme. Imported.