D'Addario Humidipak Restore Two-Way Humidity Conditioning Packets, 3-Pack

D'Addario brings you Boveda's patented, automatic, two-way humidity control technology as part of our instrument care line Based on scientific principles, the patented humidification system completely eliminates the guesswork and anxiety around maintaining your instrument's proper humidity level Revitalizes extremely dry guitars and cases Quickly and safely restores Relative Humidity Reverse osmosis membrane releases only pure water vapor Eliminates the guesswork and anxiety of maintaining your instrument's proper humidity level