Boveda Humidification System 8211 Large Instrument Starter Kit

Automatic 2-way humidity control for wooden instruments. The Boveda Humidification System provides the ideal environment for your cherished cello, acoustic guitar or double bass. Three 49% RH packets and leakproof holders stabilize humidity levels between 40-60% to avoid damage from cracking, warping or glue failure. As an automatic two-way system, Boveda packs require no maintenancejust drop them in and your instrument is protected.