Bonmusica shoulder-rest, 15.5'' viola | Metzler ViolinsA progressive design, Bonmusica shoulder rests promote relaxed playing by keeping the head in a straight position and may be configured to optimize individual preferences. The Bonmusica shoulder rest's hooked section provides excellent support while it's flexibility allows it to be contoured to any shoulder shape. Other adjustable features allow the rest to be customized for pitch angle and height. The Bonmusica shoulder rest is constructed of a