The Spalding 50 basketball system"s height is adjustable from 7.5" to 10" at fixed increments. This basketball system has a 50" steel-framed polycarbonate backboard that recreates the feel of playing on a real basketball court. Its sturdy metal frame keeps the system standing even when the play turns competitive. The backboard is adjustable and has a nylon net. This portable basketball system has 2 attached wheels that let you easily maneuver the basketball hoop to any outdoor area. It can be cleaned with a damp cloth.