GEWA Fingerboard marking Don't Fret 3/4 violin and 33cm (13 inch) viola

Fingerboard marking Don't Fret 3/4 violin and 33cm (13 inch) viola, Small accessories. Specially developed for beginners and students. Helps to learn and play the instrument more easily. Developed by Dr. Phillip Coonce, himself a violinist and teacher. The application can be easily applied and removed without leaving any residue. 12 lines. . .