Darkroom Door Cling Stamp- Follow Your Heart. These detailed stamps are the perfect way to add fun images to your cards, scrapbook pages and more! Darkroom Door Stamps are mounted on cling foam. Suitable for card making, art journals, mixed media and more! Darkroom Door rubber stamps are known for their durability, deep etching and high image detail. Use with any clear acrylic block (sold separately). This package contains one 3-1/2X2-1/2 inch cling stamp.