Usage Tips: 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 a few 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 fine air bubbles that help prevent splashing. MATERIALS - 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 tap accessories in homes, hotels, public restrooms, and other locations. It fits kitchen sink faucets, bathroom taps, and lavatory faucet spout heads. 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 in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.