INSTALLATION TOOL - The package includes 4 disassembly wrench tools of different sizes, which can be used to disassemble or install the faucet water-saving device in minutes without needing additional tools, offering convenient and easy operation. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh screen that reduces water impact and saves water by mixing air into the flow, producing a soft, aerated stream that helps prevent splashing. S - The sink faucet aerator is made of plastic for lightweight durability and simple installation. The built-in fine filter screen provides effective filtration, ensuring a steady, consistent water flow with minimal splash. WIDE APPLICATION - This water tap filter aerator is suitable for use in homes, hotels, and public facilities. It fits most 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 may vary by up to +/- 1-3 cm.