“The HumidiPro Reed Case is designed to prolong the playing life of your reeds by providing the ideal humidity controlled environment. By keeping your reeds at a constant stable level of moisture, the case prevents the harmful “wetting and drying cycle” which speeds up the aging process and also causes the reed to warp. The reeds safely and securely, and the case includes a digital hygrometer/thermometer as well as a humidipak that will last for many months at a time. It also features a replaceable reed holder.
NOTE: Case size is 8.25″L x 4.50″W x 1.75″D, and will fit in most case cover accessories compartments. It is NOT designed to fit inside your instrument case.”