Perfect for a highly competitive game, the Lifetime Slam-it Pro 54in adjustable portable basketball system offers a steel-framed acrylic backboard delivering rigidity and a professional feel. To allow for hours of dunking, there is an 18" (46cm) solid-steel Slam-It® rim, whilst a patented Power Lift mechanism ensures quick and effortless height adjustment from 229cm (7.5ft) to 305cm (10ft) in infinite increments. Extra stability for intense play is provided by XL™ portable base that can be filled with sand or water (up to 159 litres). This heavy-duty basketball system has an all-weather net that gives the perfect shoosh to your shots.