INSTALLATION TOOL - The package includes 4 disassembly wrench tools of different sizes. You can use them to disassemble or install the faucet water-saving device in a few minutes without needing additional tools, making the process convenient and efficient. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh that cushions the impact of water and saves water by mixing air into the flow, creating a soft, non-splashing stream. S - The sink faucet aerator is made of plastic, ensuring durability and easy installation. The fine filter screen provides effective filtration and maintains a steady, consistent water flow without splashing. WIDE APPLICATION - This tap filter aerator is suitable for installation or replacement on faucets in homes, hotels, public restrooms, and other locations. It fits kitchen sink faucets, bathroom taps, and lavatory faucet spouts. Material: Plastic Color: Blue + Black Package Contents: 16 x bubbler 4 x spanner Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1-3 cm.