🎻【Professional Violin Viola Bass Tuner:】Suitable for Violin, Viola, Cello, Bass with Chromatic tuning mode; With special digined clip , the tuner easy to attaches to the instrument over the pegbox and out of the way; Easy for young and adult violinist to use immediately independently; 🎻【4/4 Rubber Mute:】The practice mute reduces volume by about 50% which doesn't disturb your neighbors or family. Put it on the top of bridge, easy to use. Dimensions: approx. 2 (L) x 0.5 (H) x 0.86 (W) inch (5.2 x 1.3 x 2.2 cm)