Violin bow collimator straightener correction tool Benefits and purpose - Corrects wrong playing posture and helps beginners develop a good bow habit, supporting correct technique from the start - Easy to use and made from high quality steel wire for reliable durability - Double and two-lane design provides stability and comfort during practice - Acts as a silent teacher, reminding beginners to maintain correct bow posture and cultivate consistent bow habits without interrupting performance Key attributes - Function: bow collimator straightener and posture correction tool for violin practice - Material: high quality steel wire - Design: double two-lane for stability and comfort - Performance: supports steady, correct bowing technique over time Use scenarios - At home practice: use during daily warm ups to reinforce proper bow hold and alignment - Private lessons: use before or after exercises to self-check and adjust posture - Group or ensemble practice: share with students to promote uniform bow technique across players