BowGrip is a simple but brilliant device that promotes Correct Positioning for smooth bowing and ensures that your bow does not allow the thumb to slip. It also maintains and promotes a “bent thumb” for needed flexibility when bowing from Tip to Frog. This allows for smooth and straight bow strokes, plus excellent control for easy and better Legato, Staccato, Spiccato etc. With BowGrip, you can achieve the correct positioning methods advocated by Galamian, DeLay, Auer, Persinger and most great violin teachers everywhere. BowGrip slips on easily and attaches to any Violin bow in minutes.