A stick of powerful White Charcoal made from hard Japanese Holm oak. You can use it to turn ordinary tap water into your daily supply of filtered, fresh and tasty mineral water. By adding a piece of KISHU BINCHOTAN in your bottle, you create a natural purifying and mineralizing process similar to that of spring water travelling through layers of rock and soil from its underground source to the surface of the earth. Moving through the trillions of cavities in the charcoal, your ordinary tap water is naturally softened, ionized and freed of up to 75% of added chlorine, while being enriched with minerals such as potassium and magnesium. Length: approx. 18 cm / Diameter: approx. 1.5 cm / Mineralizing capacity: approx.1 month /Purifying capacity: approx. 3 months