[Material] The use of high quality brass material, very durable, anti-bacterial, not easy to rust, anti-corrosion. [Size] This accessory has an outer diameter of 24 mm and an inner diameter of 21 mm, suitable for most faucets. [Easy to install] Our accessories are very convenient to install. You can easily operate them by hand without any tools. Just make sure your faucet matches the size of this product. [Applicable Scenarios] This product is suitable for kitchen, bathroom and sink faucets. Product This tap water aerator is a perfect household accessory, a great splash-proof and water-saving tool. It divides a stream into several smaller streams to reduce total water consumption while maintaining water pressure. It is very suitable for kitchen and bathroom faucets. Function 1. Made of high quality brass, very durable. 2. Powerful functions and easy installation. 3. The perfect accessory to save lives and splash resistant. Material: Copper 1. Due to manual measurement, there may be 1-10mm difference in size. 2. This product is an actual product and the color may be slightly different on different computer monitors. Delivered quantity: 6 * printhead