PLEASE NOTE THIS ITEM CANNOT SHIP VIA 3 DAY DELIVERY. In our Heavy Duty Gooseneck System, the goal and backboard are bolted directly to the post, forming a solid unit. All forces of slam dunking are safely absorbed by the heavy steel post, not the backboard. Adaptable to all rims including 4' x 4' and 5' x 5' bolt patterns. System includes One piece 4 12' O.D. galvanized schedule 40 steel gooseneck post with your choice of a 4' or 5' extension. Limited lifetime guaranteed natural or powdered coated aluminum backboard. Available with 3 different rims. Nylon net also included. This item ships by truck, so please include your phone number when ordering so that you can be contacted to arrange delivery.