First, the two shoulder holder must be opened. The weight of the instrument capacity - rather than on the neck - on the shoulders; This relieves the cervical spine. The holder will go so far pulled down until the "Endplättchen" comfortably resting on his stomach. It can be placed lengthwise or crosswise. The feeling of lying on the belly plate I think is a bit strange. After playing the holder is simply folded back and stowed in the supplied bag.
