Description 1[Train Proper Bow Grip] These accessories uniquely train the hand to hold the bow correctly and naturally through muscle memory, allowing players to freely learn and enjoy playing. 2[Simple Tool] Ideal for beginners and violin enthusiasts, these teaching aids help gradually correct and improve bow grip posture, simple and efficient to develop good habits. 3[Silicone Material] Crafted from silicone material, these grip correctors are reusable and easily cleaned, providing a comfortable grip experience. 4[Compact and Lightweight] With their small size and lightweight design, these bow grip partners are convenient to carry and store, allowing you to correct your grip posture anytime, anywhere. 5[Universal Fit] Suitable for hands of all sizes, from kids to adults, these grip correctors are compatible with any size violin or viola bow, making them versatile teaching aids for a wide range of players.