ITEM NAME:1/4 - 4/4 Violin Bow Grip Partner Violino Hold Violin Bow Posture Corrector X1M9 1/4 - 4/4 Violin Bow Grip Partner Violino Hold Violin Bow Posture Corrector X1M9 flexes thumb to Press intersection of and stick gently turns and relaxes the index and middle; It flexes thumb to Press intersection of 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 Material:rubber colour:purple Package Contents: 1 * Violin Bow Grip Partner