With a joke on every card, these Scratch-Off Valentine Jokes cards will have all the kids laughing! Why did the little chicken cross the road on February 14th? To check the mailbox and see if she'd been sent one of these fun, scratch-off joke Valentine's Day cards, naturally. Definitely a laughing matter! Great for school, this set includes 28 cards with matching envelopes, 7 each of 4 card designs. Dimensions are approximately 4 x 6 inches.