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 requiring additional tools, offering convenient operation. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh that reduces water impact and conserves water by mixing air into the flow, producing fine air bubbles that help 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 helps maintain a steady, consistent water flow without splashing. WIDE APPLICATION - This water tap filter aerator is suitable for installation or replacement on faucets 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 Only the above package content; other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.