[Water Saving] Faucet aerator can fully mix the water and air flowing through to create a foaming effect, improve flow performance, and reduce water consumption. A faucet with an aerator installed uses approximately 30% less water than a faucet without one. [Splash-proof, Noise-proof, Constant Flow] After water flow is mixed with air, the stream becomes softer and reduces impact force, helping prevent splashing and minimizing noise during use. [Filtration] This faucet aerator includes a built-in filter that helps trap sediment and impurities, contributing to improved water cleanliness. Suitable for use in kitchen and bathroom sinks. [Packing List] You will receive 10 faucet aerators with a diameter of 18.5mm and 2 matching wrenches. Depending on local water conditions, for optimal performance and hygiene, it is recommended to replace the aerator every 3 to 6 months. Color: Gray + Blue Material: Plastic Size: 18.5mm x 11.5mm Package Contents: 10 x 18.5mm Faucet Aerators 2 x 18.5mm Wrenches Important Note Please measure your faucet's thread diameter before purchase to ensure compatibility. The package includes only the items listed above; other accessories are not included. Note: Lighting effects and monitor settings may cause slight variations in color between the image and the actual product. Measurement tolerances are within +/- 1-3cm.