Dilwe Violin Bow Collimator, Straight Guide Tool Collimator Adjuster Corrector for Beginner Training

WIDELY APPLICATION: Two alternatives, one is applicable to 1/8 - 1/4 violins and the other one is used for 1/2 - 4/4 violins, playing great role in mastering correct bowing action and improving their playing skills. ADJUSTABLE STRAP: The adjustable strap with fine workmanship is firm and strong, difficult to break off, wearable, no harm to your instrument. QUICKRELEASE: The hook and loop closure design is easy to mount on or take it down, helpful for you to cultivate correct bowing and wrist action. DURABLE TO USE: Transparent part is made of tough plastic, durable in use,a desirable term for violin beginners and violinists. GUARANTEE. If you are not satisfied with our product you received, you can send emails to us at any time. We will reply you instantly and help you solve your problem.