1. It has adjustable function, you can adjust water flow depend on the need. 2. Water saving rate 30%-85%, save water bills easily. 3. Suitable for any places. Description：Smooth, bubble and straight water flow. Water Saving Rate：30% ~ 85% Color：Silver Material：Brass, Chrome Plating, Plastic(pom) Water Pressure Range：1-10kgf/cm² Gauge：15/16-27, Male Thread Made in Taiwan