Premium quality precision trimmed rubber stamps that give you a beautiful image every time! Use with any acrylic block (sold separately). Simply remove the disposable acetate layer revealing the vinyl cling with printed image, press onto a block, align and stamp! Use any ink that can be used with traditional wood-mounted stamps and clean with wood-mounted stamp cleaner. This package contains Hummingbird Vine: four cling rubber stamps on one 4x6 inch backing sheet. WARNING: Choking Hazard- small parts. Not for children under 3 years. Made in USA.