And you can place the weighted bag on the base to make the basketball hoop less prone to dumping or shaking. Moreover, 2 smooth rolling wheels make it easy for you to put this portable basketball hoop in the perfect spot in your backyard or driveway. Features: 5-level adjustable height meets different requirements Thickened pole and triangular structure ensure higher stability Shatterproof backboard with double shock-absorbing springs The widened base can be filled with water or sand Provided with a free hoop secure bag to enhance stability All-weather resistant, suitable for indoors and outdoors 2 built-in wheels ensure easy movement & transportation A recess on the base offers a place to hold your basketball Specifications: Color: Black Material: Metal, PE, PET Adjustable Total Height: 10.1/10.6/11.1/11.6/12.1ft Adjustable Rim Height: 8/8.5/9/9.5/10ft Backboard Dimensions: 44" x 29.5" (L x W) Base Dimensions: 35.5" x 23" x 6" (L x W x H) Outer/Inner Diameter of Basketball Rim: 19"/18 Added Weight: 14.5-15.3 Gallon Water or 143.3 lbs Sand Net Weight: 54 lbs Package Includes: 1 x Portable Basketball Hoop 1 x Hoop Secure Bag 1 x Instruction.