258111 Wittner Zuerich violin chinrest in height and tilt adjustable 258131 Wittner Zuerich violin chinrest in height and tilt adjustable 259131 Wittner Zuerich viola chinrest in height and tilt adjustable 258211 Wittner Zuerich violin chinrest in height and tilt adjustable 258231 Wittner Zuerich violin chinrest in height and tilt adjustable 259231 Wittner Zuerich viola chinrest in height and tilt adjustable