The Santevia Alkaline Water Stick is small enough to fit in a purse or pocket and convenient for traveling or the office. The stick contains all natural compounds such as tourmaline stone, minerals stones, far infrared and calcium ion. The alkaline water stick is simple to use, just place it in a glass of water and let the magic happen. The stick will increase the pH of normal tap water or bottled water to a pH 8.0+. Dimensions:145 mm x 17 mm. Last up to one year!