BATH SHOWER HEAD, RELEASE NEGATIVE IONS, REDUCE BACTERIA, HIGH PRESSURE BOOSTING WATER SAVING FILTER BALLS Negative ion mineralized spheres purifies water and improves mineral nutrient absorption - 3 layers of mineralized spheres will greatly reduce impurities in your water - Impurities in your tap water will often dry your skin and cause an imbalance in your oil glands. With the purifying effect of the bioactive stones our shower heads will help you restore balance - Health benefits may include smoother skin, reduce oil secretion, increase cell viability 100% Shower Head Size:8cm