The durable plastic mailbox is a fun addition to any classroom! Made from weatherproof, sturdy polyurethane, it features a realistic front mail slot and a rear opening for easy mail retrieval. The Mailbox and My Mail Bag Set includes this durable mailbox and a roomy mail bag, making it a perfect classroom accessory. The mail bag, made of coated nylon, is easy to clean and comes with a break-away shoulder strap. It includes 22 preprinted plastic 4”x 6” envelopes.