D'Addario Humidipak System Refills 3-Pack

• 3 replacement packs for the Humidipak humidification kit
• Automatic humidity control protects your instrument against warping, cracks and other damage cause by lack of humidification
• No more manual adjustments based on seasonal changes, geographic locations, temperature, or other factors Unlike refillable humidifiers
• Eliminates the guesswork and anxiety of maintaining your instrument’s proper humidity level
• No water, no drips, no mess
• Custom made by Boveda for D'Addario