Mailbox and post combo is made from impact resistant heavy-duty plastic with a double-walled construction. In addition, an ultraviolet inhibitor helps the unit retain its performance and resist fading for a long time. Features a rear door for access and safe mail retrieval, keeping children and adults safely away from traffic. Large capacity for high volume mail deliveries, various mail types, and allows magazines to lay flat inside. Unit easily slides over a new or existing 4×4 post (not included).