INSTALLATION TOOL – The package includes 4 disassembly wrenches of different sizes, allowing you to install or remove the faucet water-saving aerator in minutes—no additional tools required. GREAT EFFECT – Each swivel extension faucet aerator features a fine mesh that reduces water impact and conserves water by infusing air into the flow, creating smooth, splash-free water output. S – Made from durable plastic, the sink faucet aerator is easy to install and maintain. Its fine filter screen ensures consistent water flow and effective debris filtration. WIDE APPLICATION – Suitable for kitchen sinks, bathroom faucets, and lavatory faucets in homes, hotels, and public facilities. Designed for standard spout heads. Material: Plastic Color: Blue + Black Package Contents: 16 x aerators 4 x wrenches Note: Color may vary slightly due to screen settings and lighting. Measurement tolerance: ±1–3 cm.