Boveda Humidity Control 49% RH Size 8

This is the right size Boveda for a case or tube for a bow used with a violin, viola, cello, bass or other stringed instrument Using Boveda: Requires zero maintenance—no more filling messy hoses and snakes and wetting sponges Maintains an ideal relative humidity range for bows and woodwinds—45-55% RH Prevents humidity fluctuates to limit bow hair movement Reduces expansion and contraction of wooden instruments *Size 8 packs are not individually wrapped and are activated at time of shipment* *Recommended with bow purchase to maintain hair*