D'Addario Two-Way Humidification Replacement 12 Pack Ukuleles showing you exactly which bands

showing you exactly which bands need to be adjusted for optimal performance

and 2 knobs – all are laid out in a highly-intuitive format designed to put the joy back into your music creation

Alnico 5 magnets deliver classic tonal character with increased output for a great vintage-hot Firebird sound

and let it do the heavy lifting

D'Addario Two-Way Humidification Replacement 12 Pack Ukuleles showing you exactly which bandsFor the first time, the D'Addario Two Way Humidification System (formerly Humidipak) is now available in bulk 12 packs. This is the perfect solution for luthiers and guitar repair shops. The Two Way Humidification System is the first maintenance free, humidity control system, made by Boveda, which preserves a constant 45% 50% relative humidity level within your instrument's case. This eliminates all maintenance and guesswork. D'Addario is known for