1 pcs 1/4 - 4/4 Violin Bow & 1 pcs Bow Rosin flexes thumb to Press intersection of frog and stick gently turns and relaxes the index and middle; It flexes thumb to Press intersection of frog and stick Postions index finger to rest on bow fingers still arc contact in all the usual places. universal Fit-for baby to adult hand size Violin Bow Grip Partner: Material:rubber colour:purple Violin Rosin: Use: Universal Model Number: VT0908-010 Suitable: for Violin Viola Cello For orchestra and solo work. Improves the tone. Saves the strings and bow hair. Takes hold well and leaves very little dust. Doesn't soften in warm weather. colour:White casing Material:Rosin + plastic case size:4.5X3.0X1.5cm Package Contents: 1 * Violin Bow Grip Partner 1 * Violin Rosin Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm.