Features: Improve water efficiency and prevent splashing with our Tap Bubblers. Perfect for kitchen and bathroom faucets. Make of plastic, our aerators are corrosions resistant, enduring. The spouts designs ensures a soft water flows and long lasting performances. Suitable for anyone looking to save water and reduce their environmental footprint. Our aerators provide a water saving solution without compromising on performances. Whether you're washing dishes or brushing your teeth, our aerators create a quiet and smooth water flows, splash proof and saving water. With the included wrench, you can remove and install it in minutes. All you need to do is combine aerator with the spanner and finally insert the tap and turn clockwise. Specifications: Component: Plastic Type: Set 1/Set 2/Set 3/Set 4 Diameter: about 18.5mm/0.73nch Package Includes: 1set Aerator and Keys note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.