- Multifunctional tool for self-guided practice This violin bow corrector acts as a self-taught exercise guide, helping you develop proper bow and wrist movements to make playing easier. - Upgraded design with left and right side covers The guide features a left and right side cover design and corrects bow mechanics while maintaining the original sound quality. - Practical and portable Compact and lightweight, this violin bow straightening collimator is easy to carry in your violin case or gig bag. - Sturdy and durable Made of high-quality plastic, this violin corrector is abrasion resistant and designed for a long service life. - Design intent and compatibility Specifically designed to support violin practice without altering instrument tone, providing a reliable aid for refining bow technique. - Use scenarios 1) Home or studio practice: use as a guided exercise to learn and reinforce correct bowing and wrist movement for beginners and progressing players. 2) Travel or between lessons: keep in your violin case or bag for quick on-the-go practice and technique maintenance. 3) Pre-performance warm-up: use during warm-ups in a studio or rehearsal to align bow and wrist motion quickly without impacting sound when playing.