The Spalding 88307PR in-ground system features a 52" steel framed acrylic backboard with an authentic style board pad. The Pro Slam rim has breakaway action with steel rams. The Pro Glide lift system provides height adjustment from 7.5" to 10" in 6" increments. The included pole is a 3 piece, 3.5" round pole. The system also includes a ground sleeve for easy installation and removal.