Straighten Violin Bow Collimator Adjuster Violin Bowing Tool Teaching Practice

Label:Yes colour: Black+Transparent white Size: 6.3*5.7*1.5cm(2.48*2.24*0.59in) Suitable for: 3/4-4/4 Violin Package Contents: 1PC Violin Bow Corrector Material: Plastic Item Weight: 14g / 0.5oz

Features: Easy to install and disassemble. Self bowing practice guide. Mini size and lightweight. Great for beginners to master correct bowing action.