【Wittner Fine Tuner / String Adjuster for Cello 4/4 + 3/4 black】
Wittner is one of the world's most respected musical instrument accessory companies. Wittner fine tuner / string adjuster will allow you to make subtle adjustments to the tuning (tension) of each string. The colour of this adjuster is black. The Wittner Cello String adjuster for 3/4 & 4/4 cellos fits to the tailpiece of your instrument.