INSTALLATION TOOL - The package includes 4 disassembly wrench tools of different sizes, which allow you to disassemble or install the faucet water-saving device in minutes without needing additional tools, offering great convenience. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh that reduces water impact and saves water by mixing air into the flow, creating a soft, aerated stream that helps prevent splashing. S - The sink faucet aerator is made of plastic, designed for durability and easy installation. The fine filter screen provides effective filtration and maintains a steady, consistent water flow without splashing. WIDE APPLICATION - This water tap filter aerator is suitable for installation or replacement on various taps in homes, hotels, and public restrooms. It fits kitchen sink faucets, bathroom taps, and lavatory faucet spouts. Material: Plastic Color: Blue + Black Package Contents: 16 x bubbler 4 x spanner Only the above package content is included; other items are not part of this package. Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.