Boveda Single Fabric Holder for Size 70

The special leak-resistant lining of the Boveda Fabric Holder lets Bovedas pure water vapor achieve and maintain a constant relative humidity (RH) range of 45% to 55%the safe zone for wood instruments. Simply Place the Boveda Size 70 into the holder and place it in your instrument case, it's that easy.

Use with all Boveda, including High-Absorbency Boveda for wooden instruments in high-humidity climates.