With this 27-piece play set, it's always Mail Time! Personalize the Blue's Clues and You! Mailbox, letters, and envelope with reusable stickers. Use wooden stamps with self-stick tabs to mail a wooden postcard, reusable invitations, and shipping pouch. A double-sided puzzle or wooden pieces for a matching game fit into a gift box that can be mailed in the pouch! Kids four and older will love playing mail carrier, pretending to send and receive mail, and exploring imaginative play whenever it's Mail Time! Blue's Clues and You promotes kindergarten readiness, inspring confidence, empowerment, and kindness in preschoolers as they develop their problem-solving, social, and developmental skills through play.