Spalding 68395W NBA Portable Basketball Hoop with 54 Inch Polycarbonate Backboard 54 Inch Polycarbonate basketball backboard with aluminum frame Heavy duty solid steel Arena Slam breakaway basketball rim Three piece, 4 Inch square pole Screw Jack height adjustment system adjusts the basketball goal from 7.5 - 10 feet 40-gallon base fills with water or sand for stability