Deep purification and powerful softening: Filtration Stone Ball provides a series of wonderful functions,effectively removing residual chlorine,reducing impurities,and softening hard water for you to enjoy a cleaner and higher quality shower. Natural mineral composition: these mineral stone beads rich in essential elements (potassium,sodium,calcium,magnesium,phosphorus) and 18 trace minerals (zinc,iron,selenium,etc.). These natural minerals can enhance water absorption,restore the healthy pH balance of the skin and hair,making the skin smoother and hair softer. Multipurpose and Durable: This filter ball is not only compatible with most common handheld showerheads on the market,but can also be used for water cleaning in fish tanks,mineral supplementation in potted plants,and pipeline maintenance. Provide long-lasting performance for your home's healthy water supply. Quantity : You will receive 153g of mineral stone beads (9 pack). Whether for new use or refilling,it is recommended to fill three mineral beads in a ratio of 1:1:1,which will fully utilize the trace elements of the three substances. Easy to install and replace: these filtered balls widely applicable to ordinary hand showerheads with filtering function in the market. As a replacement bead for the filter element,it can be replaced regularly according to the water quality to ensure optimal performance and obtain the shower experience..