9 Packs Mineral Balls Negative Ion, Replacement Bio-Active Stone, pH Balance Tourmaline Balls Showerhead Filter Refill Kit,Remove Chlorine, Fluoride, Impurities and Hard WaterSpecificities1. Red Natural Stone: Remove bacteria, impurities, sediment, chloring, fuorine, pharmaceuticals, odors, and sulfur.2. Grey Mineral Stone: Makes a variety of precious minerals which easy to absorbed by the skin. Reduce rust buildup and restore smoot skin, make your hair shiny and smooth.3. White Anion Stone: Soften hard water, adjust pH value of the water. Remove the residual chlorine in the water and reduce the acidity of the water.4. Purification and filtration of water: Keep the water soft so hair shines and your skin is not dry, and will not leave a watermark on the shower. Suitable for all stone shower heads.5.
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