For the first time, the D'Addario Two-Way Humidification System (formerly Humidipak) is now available in bulk 12 packs. This is the perfect solution for luthiers and guitar repair shops. The Two-Way Humidification System is a first maintenance-free humidity control system made by Boveda, which preserves a constant 45%-50% relative humidity level within your instrument's case. This eliminates all maintenance and guesswork.
Features:- Two-Way Humidification bulk 12 pack replacement packets
- A 10% cost savings
- Automatic humidity control protects your instrument against warping, cracks, and other damage cause by lack of humidification
- Eliminates the guesswork and anxiety of maintaining your instrument's proper humidity level