Stampendous Cling Stamp – Jack Stack – 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 Jack Stack: one cling rubber stamp on one 4.5×5.5 inch backing sheet.