IRIN | 3/4 4/4 Violin Bow Corrector Fiddle Posture Straighten Collimator for Beginner Music Tools String Instrument Accessories Parts

3/4 4/4 Violin Bow Corrector String Instrument Accessories Parts Fiddle Posture Straighten Collimator for Beginner Music ToolsDESCRIPTIONCorrectors are used to correct beginners' incorrect bowstrokes. It is a standard requirement for beginners to maintain a correct bowing posture and develop good bowing habits. More convenient for beginners to practice violin.Item Type: Stringed Instrument AccessoriesMaterial: ABSColour: transparentProduct size: 772 cmApplication: 3/4 and 4/4 violinPacking list1*Bow straightenerOnly the above package contents are included, other products are not included.Lighting shots and different monitors may cause the colour of the item in the picture to be slightly different from the real thing. Allowable error of measurement is +/- 1-2 cm.