- Finely made, practical and highly durable for long-term use. - Designed for violin beginners to practice bow grip, master bow posture, and prevent bow slipping during playing. - Made from resin materials with good flexibility to extend service life. - Black soft silicone groove with accurate size and a concave-convex surface, protects violin lacquer and does not harm the instrument. - Suitable for daily practice and lessons, helping beginners develop proper technique while providing reliable grip and instrument protection. - Use scenarios: - At home practice for beginners to establish correct bow hold and steady bow control. - During violin lessons to help students maintain proper posture and avoid slipping while bowing. - In short practice sessions away from the studio, where a durable, safe grip aid is beneficial and will not damage the violin’s finish.