Enjoy pure-tasting water with all-natural purifying charcoal stick. This is a premium activated charcoal made from 100% Ubame Oak and has been revered in Japan for centuries as a natural air and water purifier. It possesses powerful water purification properties that draw impurities out of tap water while releasing beneficial minerals, such as calcium, mercury, magnesium, and phosphate. Say goodbye to plastic water filters that leech harmful chemicals! Made in Japan.