Basketball Hoop Goal on Wheels Adjustable Height 5 – 10 FT, 44″ Backboard Outdoor Basketball Stand For Adults & Kids extra-large base(23.6″ x 35.4″ x 6.7″) can be filled with water (65kg) or sand (up to 80kg) Lift system provides 15 levels for height adjustments, easy height adjustments from 5 ft to 10 ft. When you only install two steel poles, 4.7’ to 6.7′ height adjustability(in 4″ increments); When installing all three steel poles, 8’ to 10′ height adjustability(in 4″ increments).