Spalding 88348 In-Ground Basketball System with 48-Inch Eco-Composite Fan Backboard 48-inch Eco-Composite fan backboard; 5/8-inch Slam Jam breakaway rim w/ all-weather net; Exacta height lift system; 3-piece 3.5-inch diameter pole system; ground sleeve for easy installation 48-inch Eco-Composite fan backboard Exacta Height lift system adjusts height in 6-inch increments from 7.5' - 10' Three piece, 3.5-inch diameter pole for easy assembly Eight-year limited warranty