INSTALLATION TOOL - The package includes 4 disassembly wrench tools of different sizes, which allow you to easily disassemble or install the faucet water-saving device in minutes without needing additional tools. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh that reduces water impact and conserves water by mixing air into the flow, creating fine air bubbles to prevent splashing. S - The sink faucet aerator is made of durable plastic and is easy to install. The fine filter screen provides effective filtration, maintaining a steady and 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 places. 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 shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.