Hydroceel humidifier including bracket, 1m long - The hydrocceel is hung directly into your piano or wing to compensate for dry air. - Uniform delivery of the moisture over 3 to 4 weeks - For water intake, the humidifier is simply placed in water or immersed (instructions are included) (possibly With the optionally available humidifier bag) - Depending on the climate, one to two rods with a length of 50 or 100 cm should be used. - Using below 40 % relative humidity (40 to 60 % are optimal) - We also recommend a digital hygrometer with MIN and MAX value storage.