QA is foldable modell with large wheels. It is suitable for even rough surfaces. It can withstand weights of up to 113kg. This modell does not have a steering wheel, so changing direction is only possible by lifting the device and turning it. The Quick Adjust function means that the height of the modell can be easily adjusted with the push of a button, much like crutches.
With transportation one can fold together a knee scooter so that it becomes flat and and is easily fitted into a small cars trunk.
The breaks only work efficiently if you put your weight on the knee scooter. The reason for not breaking the front wheel is that this could lead the knee scooter to tip over.