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 efficient 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 minimize splashing. S - The sink faucet aerator is made of plastic, designed for durability and easy installation. The fine filter screen provides effective filtration, maintaining a steady and consistent water flow without splashing. WIDE APPLICATION - This tap filter aerator is suitable for installation or replacement on various 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 is included; other items are not part of this set. Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance is +/- 1-3 cm.