Boveda 2-Way Humidity Control - Large Starter Kit for Acoustic Guitars

Humidity control is vital in maintaining your acoustic guitar. 
If the guitar is exposed to too much humidity the top can swell and raise the bridge (higher action)
If it dries out the top can start to sink.
Both of which can cause permanent damage if the top wood splits.

Welcome to Boveda maintenance free 2-way humidity control for fretted, bowed and wood woodwind instruments, including: acoustic guitars and basses; guitarróns; violoncellos; double basses; bass clarinets; bassoons; and large cases. Boveda creates the perfect humidity balance for your wood instrument—whatever its surroundings call for. Make any case more protective with Boveda.

INFORMATION

Start here with Boveda. Safe, dependable, simple.

Takes the work out of managing humidity for wooden instruments—fretted, bowed or woodwinds. Automatically humidifies and dehumidifies—whatever your instrument’s surroundings call for.

No more foams, hoses and sponges that require constant attention and could damage an instrument, affect the sound and playability and lead to costly repairs.

Achieves and maintains a constant relative humidity (RH) range of 45% to 55%—the safe zone for wood instruments.

Uses only pure water and all-natural salts sealed inside a leakproof membrane.

How to use Boveda in your instrument case:

1. Remove Boveda's plastic wrapper. (Do not open the Boveda itself.)
2. Just slip unwrapped Boveda into the pouch(es) of its leak-resistant fabric holder(s). (A Boveda protective holder is soft, like a polishing cloth.)
3. Place in case and close the lid. Always keep your case closed when using Boveda.

No maintenance for months! Initially, Boveda has some catch-up work to do, so your first Boveda won't last as long as subsequent ones. After your first set, Boveda will last 2-6 months depending on the time of year, your climate and your case. Replace when rigid.

Size Large is for fretted/bowed wood instruments (acoustic guitars and more). Includes: 4 Size 70 Boveda 49% RH and 2 double (2-pouch) fabric holders: 12.5" x 4.25" (unfolded); 6.625" x 4.25" (folded)

Always insert Boveda into a pouch of a Boveda fabric holder before placing in an instrument case. Do not mix different Boveda RH levels within the same instrument case. And do not use Boveda in the same case with other humidification products because they will fight against each other and reduce the efficiency of Boveda.