Stampbord is an absorbent clay coated wood surface that gives a clean pristine image every time. Unlike other stamping surfaces, Stampbord allows you to scratch back into the image to create incredible detail and highlights. These 2.5"x3.5" Artist Trading Cards come in a convenient 16-piece Party. Pack for the more avid ATC artists. With 16 pieces, you'll have enough to trade with all the artists in your ATC circle!