Designed for use in residential areas, this outdoor portable basketball system is perfect for driveway games 111cm (44”) polycarbonate backboard with board pads is shatter-proof and gives you a solid rebound Offset between the steel pole and the backboard is 40cm (16”) Slam Jam breakaway steel rim has a hinge allowing it to bend down for those hardcore dunks Pro Glide lift system allows for multiple height adjustments 117-liter (31 gallon) base can be filled with sand or water to provide stability Two wheels on the base make it easier to roll the hoop down the street Some assembly is required; instruction manual is included