Lifetime 1239 Pro Court Height-Adjustable Portable Basketball System with 42-Inch Clear Acrylic Backboard The portable base rolls on wheels, allowing players to position the basketball system in the desired location Durable backboard is made of clear acrylic and can withstand the demands of aggressive play The 27-gallon portable base provides a stable foundation by filling it with water or sand Five-year limited warranty Telescoping pole sections provide height adjustment capability to include all players