SPALDING 48"BB PORT.SYSTM 48" Eco-Composite fan shaped backboard. 5/8" heavy-duty steel Slam Jam breakaway rim with white all-weather net. Pro Glide lift provides height adjustment from 7.5' to 10' in 6" increments. Three piece, 3" diameter pole system for easy assembly. 37.5 gallon capacity base fills with water or sand for stability.