Don't let your instrument dry out.
The Super Sensitive GL-3852 Violin Dampit protects your violin from damage due to excessive dryness. A soft rubber sleeve encloses a special open-cell sponge. Simply soak in water, wipe off, and insert through F-hole. Instructions and handy humidity guage included. The Dampit humidifier provides long term humidity protection and guards against cracking and warping.