Lifetime 71793 Height-Adjustable In-Ground Basketball System with 48-Inch Backboard Durable in-ground basketball goal designed for rugged, high-intensity play 48-inch pro-look Fusion backboard made of sturdy Makrolon polycarbonate for shatter-proof action Action Grip mechanism raises or lowers rim from 7-1/2 to 10 feet with the squeeze of a handle Slam-It rim with double-compression springs for dunking; welded steel hooks and all-weather nylon net Powder-coated, weather-resistant finish; round 3.5-inch in-ground pole; five-year warranty