Replacement Beads Packet for HotelSpa Ulra-Luxury All-in-One 3-way Combination Shower with 7-setting 7 Inch Rainfall Shower Head and High-Pressure Ionic Shower Filter Hand Shower All-natural Bio-active Stones provide Eco-Pure Water Filtration to help remove chlorine, heavy metal and impurities Negative Ion technology is known to soften and purify shower water to help eliminate dry, flaky skin restore smoother, softer skin, scalp and hair, promote better skin absorption and regenerate cell functions Can be used with HotelSpa Ulra-Luxury All-in-One 3-way Combination Shower with 7-setting 7 Inch Rainfall Shower Head and High-Pressure Ionic Shower Filter Hand Shower ( ASIN B01D8S1VGM ) Helps restore smoother, softer skin, scalp and hair, promote better skin absorption and regenerate cell functions Bio-active Stone Replacement Kit lasts up to 1 year