Blank inside. 100lb heavyweight card stock. Offset printed. 4.25 x 5.5 inches. Illustrated by the House that Lars Built. Printed by Red Cap Cards in Los Angeles, California, USA, on recycled paper.Available as both single cards and pre-packaged boxed cards.- Each single card comes with an envelope and a cellophane sleeve.- Boxed sets are 8 cards with envelopes and are to be sold as packaged, NOT TO BE re-sold as individual cards.