[Water Saving] Faucet aerator can fully mix the water and air flowing through to form a foaming effect, improve the scouring force, 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 the water flow is mixed with air, the water 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 impurities, providing cleaner water. The sink aerator is suitable for both kitchen and bathroom faucets. [Packing List] You will receive 10 faucet aerators (18.5mm) and 2 wrenches for installation. Depending on local water quality, it is recommended to replace the aerator every 3 to 6 months for optimal performance and water hygiene. 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 purchasing to ensure compatibility. Note: Light reflection and differences in display screens may cause slight variations between the color shown and the actual product. Measurement may vary by +/- 1-3cm.