Herzberg HG-MINERALST: 1 Set of Mineralized Spheres Replacement The mineral spheres are consist of 3 kinds that provide a powerful mineral that reduces impurities in that often which is beneficial to seal skin's moisture and balance the production of sebum in the oil glands and restore normal skin health. This bio-active 3 filter sphere technology removes 98.9% of water choline content and other harmful elements for a softer, smoother and healthy hair and skin. and This elegant shower head is made up of eco-friendly and safe materials. Features: Mineralization stone - kind of mineral that purification function. Absorbs harmful substances in the air for achieve the effect of deodorization Anion stone -release negative ions, improve lung ventilation & promote metabolism Germanium stone - efficiently removes chlorine from tap water during bathing, shrinks skin pores, hydrates and whitens the skin to prevent skin aging Specifications: Brandname: Herzberg Color. Brown, White, Gray Material: Germanium stone, Mineralization stone, Anion stone