You're going to have a whale of a good time creating cards with the Color Layering Blue Whale Clear Acrylic Stamp Set by Hero Arts! The set includes 16 photopolymer stamps that come on a 4" x 6" storage sheet. The stamps are made in the USA and range in size from .75" x .25" to 3.75" x 2.25". Use these stamps with your favorite mediums and an acrylic block of your choice sold separately.