INSTALLATION TOOL - The package includes 4 disassembly wrench tools in different sizes, allowing you to easily install or remove the faucet water-saving device within minutes without needing additional tools. GREAT EFFECT - Each swivel extension faucet aerator features a fine mesh screen that reduces water impact and conserves water by mixing air into the flow, producing soft, non-splashing water with fine air bubbles. S - The sink faucet aerator is constructed from durable plastic for long-lasting use and simple installation. The integrated fine filter screen ensures consistent water flow while providing effective filtration. WIDE APPLICATION - This tap filter aerator is suitable for use in homes, hotels, and public restrooms. It can be installed on kitchen sinks, bathroom faucets, and lavatory spouts. Material: Plastic Color: Blue + Black Package Contents: 16 x bubbler, 4 x spanner Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.