Humitron Cello Humidifier

The "Humitron" humidifier for Cello is highly effective in preventing wood cracking. • Helps prevent wood cracking • Designed to replace moisture from an instrument with vapour • Internal water retention material • Precision vents for releasing vapour • Caps designed to keep Humitrons in position • End plugs are sealed to prevent dripping • Made in the USA by RDM • Clips onto the F-hole.