Knee scooters are high performance for speed and safety. For example- A knee Scooter is very simple to ride and a self balancing device as it has a bigger base and more wheels for stability. While the other kind of scooter is called self balancing, many people have started calling them hover boards to prevent any confusion. The second form of a mobility scooter is known as self adjusting yet a lot of people have begun calling them hover boards to steer clear of any perplexity. The mobility devic