Lifetime 1482 Height-Adjustable Portable Basketball System with 48-Inch Backboard Portable basketball goal system has a backboard and base of highly durable polyethylene Steel rim is equipped with double compression springs that provide spring back action Steel pole comes in three pieces and can be adjusted from a height of 7.5 to 10 feet in six-inch increments Base has a 31-gallon holding capacity and rolls easily on its own wheels Weighs 258 pounds when filled with water; 448 pounds with sand