This goal from amazon does not come with a 'locking system' . The locking system helps to keep the frame of the goal sturdy . Without it , the frame will not be able to bear powerful shots and the frame will loosen . If your son/daughter has powerful shots , like my son , I recommend you buy a goal with a locking system . You can buy goals with locking systems at The Soccer Store , an internet site . Otherwise , it is good for garden use .