Fits 4/4, 3/4, and 1/2 Violin & Viola
Extremely effective instrument humidifier is placed inside the violin (through the f-hole). Recommended for use in cases that dry out quickly or that have no other means of humidification. The Core Humitron requires more frequent filling than other humidifiers, and care must be taken to avoid dripping onto the outside of the instrument when refilling/installing.
