The Boveda Small Kit for Instruments is the perfect solution for managing humidity for wooden instruments such as fretted, bowed, or woodwinds. This kit includes (2) Size 70 Boveda 49% RH packs and fabric holders, providing automatic humidification and dehumidification based on the instrument's surroundings. With a safe zone RH range of 45% to 55%, this kit ensures optimal conditions for your instrument. The Boveda packs, which use pure water and natural salts, provide humidity control for 2 to 6 months, eliminating the need for constant attention and potential damage to the instrument. Say goodbye to foams, hoses, and sponges, and protect your wooden instrument with the Boveda Small Kit.