The Roof King Platinum roof-mount basketball goal brings professional looks and great play to even the most cramped driveways! The heavy-duty patented bracket allows you to set the rim at precisely 10' no matter what angle or height your roof is* (roof eve must be between 8' 2" and 9' 3"). The huge crystal clear 60" x 36" x 1/2" backboard is made of thick acrylic and uses a beefed up frame which makes this basketball goal play wonderfully. It also comes with a college break-away rim that has an internal dual spring back mechanism. It can be adjusted to the tension desired by the player. If room is limited and a freestanding in-ground system just wont fit in your driveway than this roof-mount goal is a great solution. This is our most best roof-mount basketball goal and will look great atop your garage with its big 60" backboard and satisfy the most demanding players with its reinforced backboard frame and college break-away rim. The 60" acrylic backboard looks great and plays wonderfully on the roof-mount system because of the board's thickness (1/2" - thicker than most competitors) and the beefed up frame. The frame is made from high quality aluminum metal which is supported with 3/8" "L" bars at the corners for added stability.