Yes, they are trusted. If you raise your legs while lying down, they may suddenly jump on top of you and hit nearby objects, so watch your free limbs. Whether turning or pushing, the neck turns side to side well. The skeleton in other parts is more difficult to bend because it is too tight. With the percussion device, it feels the best to use, it is easy to operate even while standing, and it has a narrow back. So if you get used to the front, the back can be addictive.
