Cards by Kids turns your children's artwork into one-of-a kind greeting cards. Children's masterpiece artwork are transformed into items such as birthday cards, party invitations, thank you notes, etc. The 4.5" x 6" cards are blank inside and come with 100% recycled paper envelopes. Parents can order directly to preserve their child's artwork forever, and to have cards on hand for any occasion. For schools and organizations, these cards present a creative fundraising idea. Cards are sold in a pack of 10.