Violin Bow Straighten 1/2 3/4 4/4 Fiber Violin Bow Collimator Bowing Practice Guide Correct for Beginner Training Exercise Tools

Violin Bow Straighten 1/2 3/4 4/4 Fiber Violin Bow Collimator Bowing Practice Guide Correct for Beginner Training ExercisedescriptionsSuitable for violin, beginner's practice, mastering the posture of the bow, preventing slippage; the choice of resin material, good flexibility, prolonged service life; black soft silicone groove, the size of the accurate, concave and convex, does not hurt the lacquer.SpecificationProduct Name:Violin Bow StraightenerColour: BlackMaterial: ResinApplication: 4/4-3/4-1/2 violinPacking list:Violin bow straightener*1Only the above package content, other products are not included.Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-2cm.