Giantex Portable Basketball Hoop Adjustable Height 6.5 - 8.5 FT, Backboard System Stand with 2 WheelsQuick Height Adjustment: By rotating the knob, this backboard system stand can be adjusted into 5 different heights which allows you to adjust it to the height you want. Additionally, it is suitable for users of different heights, such as teenagers, adults and mid ages, etc. Filling Base for Stability: This large base with the capacity of 8 gallons 90 lbs can be filled with enough sand or water to keep this basketball hoop system stand sturdily. At