KUN shoulder rests are specially contoured to fit the shape of the shoulder. Their combined strength and flexibility makes the rests comfortable, with no risk that they will hit the instrument. And all are adjustable in three directions, so they can be customized to suit each player's needs. Fits all fractional violins from 1/10th through 1/4 size. Non-collpasible. For a collapsible model, see item 079884.