This weather resistant basketball hoop system is made of rustproof metal pipes, HDPE base, PE and PVC backboard, which makes it durable for long time outdoor use. The height can be adjusted from 1.35-3.05m so that people of all age stages can have fun. The base can be filled with sand or water to enhance the stability. And the shockproof and impact resistant backboard is built to last. Equipped with 2 rolling wheels, this portable basketball hoop system is easy to move, which is convenient to store after playing. There is a groove on the base as a place for you to hold basketball. Coming with detailed instructions, the assembly is easy. 12-Level Adjustable Height: The height of this basketball hoop can be adjusted from 135 cm-305 cm (floor to rim height) to provide people of all age stages with basketball fun, such as kids, teenagers and adults. So this height adjustable basketball hoop allows your whole family to enjoy playing basketball in the next couple of years. Shatterproof and Sturdy Backboard: The 110 cm x 75 cm shatterproof backboard is made of high quality PE and PVC material and is also crafted with rounded edges to ensure safety. Besides, Y-shaped structure on the back is impact resistant and not easy to break. The 45 cm heavy-duty rim adopts double-spring damping system to extend the service life. Stable and Fillable Base: The high strength base is firmly connected to the pole through the triangular structure, which effectively prevents toppling and bending. Measuring 88 cm x 58 cm, this large base is capable of containing 50kg water or 75 kg sand. Convenient Ball Storage and Easy Mobility: The base features a groove as a place to hold the basketball during the break time. Built in 2 rolling wheels, this portable basketball system is easy to move and store after playing, which is suitable for indoor and outdoor places like gym, playground, backyard and driveway. All Weather Basketball Hoop: The powder coated metal pipes are rustproof and strong to withstand long term use in changeable outdoor weather. Besides, the HDPE base is also durable for long time outdoor use. And the package includes 2 weather resistant nets.