INSTALLATION TOOLS - The package includes four disassembly wrench tools of different sizes. You can use them to disassemble or install the faucet water-saving device in minutes, eliminating the need for additional tools. EFFECT - Each swivel extension faucet aerator features a fine mesh that cushions the water's impact and conserves water by incorporating air. This creates a fine, non-splashing stream. MATERIALS - The sink faucet aerator is made of plastic and is easy to install. The fine filter screen provides effective filtration, maintaining a consistent and stable water flow without splashing. WIDE APPLICATION - This water tap filter aerator is suitable for installing and replacing tap accessories in homes, hotels, and public spaces. It can be fitted to kitchen sink faucets, bathroom taps, and lavatory faucets. Material: Plastic Color: Blue + Black Package Contents: 16 x Bubblers 4 x Wrenches Note: Light reflection and different displays may cause the item's color in the picture to differ slightly from the actual product. The measurement error allowed is +/- 1-3cm.