About This Stable Relative Humidity: Uses a US patented fiber formula and breathable film to absorb and release moisture, keeping guitars and wood instruments at stable RH. Fast & Long-Lasting: Activates instantly and adjusts RH 3× faster than traditional methods. Each 49% pack works continuously 3–6 months in a sealed case, depending on climate and usage. ±2% Precise Control: Designed for musical instruments, offering 49 ±2% RH precision to protect tone and structure. Ideal for both daily use and long-term storage of instruments. Easy to Use: Just remove the outer wrap, place the pack in a sealed container with your items. Reaches target RH 3× faster with long lasting effect up to 120 days. DO NOT tear open the white packet. Fits Most Instruments: Works with guitars, ukuleles, violins, basses, clarinets, mandolins, and more. Trusted by musicians and teachers to extend instrument life and preserve sound quality. Overview Brand : Humidi-Cure Product Dimensions : 9.84"D x 6.3"W x 1.97"H Item Weight : 0.14 Pounds
