Dunk and go nuts. The Spalding 54 in. Polycarbonate Portable Basketball System features an all-steel arena slam rim durable all-weather net and 54-inch polycarbonate backboard. Its durable construction ensures that it will withstand the most intense game play. An aluminum frame and wheeled base provide portability. Safety pad included. About SpaldingFounded by Boston Red Stockings pitcher A.G. Spalding in 1876 Spalding has been developing innovative products ever since. From creating the first American football to producing the first basketball for Dr. James Naismith to their latest advances in INFUSION technology (balls with built-in pumps) Spalding has been on the cutting edge of the sporting goods industry for well over a century. True to A.G. Spalding"s vision the company has delivered quality goods that reflect a commitment to workmanship in every finished product every step of the way.