Turn your backyard into a playground filled with laughter and memories with the SmileMart portable basketball system. It has a big weighted base that can be filled with water or sand for added stability and safety . and the two wheels ensure good mobility of the stand. Featuring 6 pairs of holes for height adjustments . the telescoping post can be easily adjusted from 217 cm/7′ to 277 cm/9′ in 12 cm/4.7″ increments. It is constructed of high-impact polyethylene plastic backboard and base . and a powder-coated metal stand . our water . and weather-resistant basketball hoop are designed to withstand the elements. The base is equipped with two 4″/10 cm big wheels for effortless moving even when the base is weighted by stuffing.