Acoustagrip CM401 3/4-4/4 Concert Master Violin Shoulder Rest

The 2 layer design of the AcoustaGrip Concert Master is a key feature. One layer is made from special acoustical materials, delivering enhanced sound and ultimate comfort. The other layer is unique as it attaches simply with air to the back of your instrument using micro-air technology. The Concert Master's ergonomic design sets the violin's position at the most favored angle for sound projection and ease of performance. No more sores, marks or shoulder pain! The Concert Master attaches with No Glues or Clamps and helps to preserve and protect the quality and condition of the violin or viola.