The Spalding (88307PR) in-ground basketball system features a 52" steel framed acrylic backboard with an authentic style board pad. The Pro-Slam® rim features breakaway action with steel rams to attach the net. The Pro-Glide™ lift system provides rim height adjustment from 7.5' to 10' in 6" increments. The three piece, 3.5” round steel pole system allows for maximum performance during play. The system also includes a ground sleeve for easy installation and removal.