DescriptionThe bow straightener is made of high-quality rubber. For most violin learners, especially beginners, it can be an indispensable tool for correcting posture. You can get a truly durable and practical bow straightener at a reasonable price.Features-Material: Rubber -Made of rubber, the bow straightener has reliable quality and strong practicability. -Scientific design to help you get rid of the wrong posture of playing the violin. -You can keep it by yourself or give it to friends or family members who start to learn the violin. -The small size of the bow straightener does not take up much space to store it. -The workmanship is fine, the bow straightener is not easy to be deformed, and the quality is guaranteed.