4/4 3/4 1/2 1/4 1/8 Violin Bow Collimator Straighten Violin Bowing Tool for 3/4 4/4 Violin Bow

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