What you want to ask is what is the movement of the four steering wheels in the park called? This kind of exercise is called Tai Chi Massager.

Tai Chi Kneader is also called Tai Chi Wheel Shoulder Joint Trainer. Its structure is that four wheels like a steering wheel are lifted up. The wheel is fixed by a frame with rollers on it, which can rotate freely in 360 degrees.

This outdoor fitness equipment can be used by two people at the same time. When in use, two people hold the wheel with their hands and turn the wheel with their arms.