The Mailmaster Trimline Plus Black Mailbox features a slim design, Heavy-duty poly construction is durable and resists vandals. Molded-in newspaper tube with rear flap. Front and rear access to interior compartments. Mounts to existing or new 4x4 post (not included). Includes address numbers, mounting hardware, and post cover. Minimal assembly required. Size: 50-1/2"H x 22-1/4"W x 9-1/4"D.