Boveda 2-Way Humidity Control Refill Pack
- Includes 4 or 12 Boveda 70 gram 49% RH packs for wooden instruments packaged in resealable plastic bags
- Typically lasts between 2-6 months in a seasoned case, based on instrument case quality, time of year and climate
- Designed for use with leak-resistant Boveda Pouch Holders
- Boveda Dimensions: 5.25" x 3.5"
- Shelf life: 2+ years when re-sealed and kept in original packaging