A. **Packaging and Dimensions** - You will receive 2 faucet adapter connectors and 4 black rubber gaskets. - Faucet adapter dimensions: It converts from a 20 - millimeter external thread to a 22 - millimeter external thread. - Gasket diameters: 21 millimeters (0.82 inches) or 19 millimeters (0.74 inches). - (It is recommended to check the product size chart before purchasing.) B. **Design Features** - It adds an extra extension function to your existing faucet aerator, providing a longer connection length for the aerator. C. **Wide Application** - This faucet adapter is designed for standard faucets. It can change the threads to make the faucet compatible with water filters or water - saving devices (such as aerators). It is suitable for many faucets and can be connected to the sink faucet aerators in the kitchen, bathroom, or garden. D. **Easy Installation** - Simply unscrew the existing aerator from the faucet and then hand - tighten this adapter. Additionally, it comes with rubber gaskets to prevent leakage. E. **Brass Metal Material** - The faucet adapter connectors are made of brass and metal and are chrome - plated. They have relatively high hardness, are wear - resistant and corrosion - resistant, and can be used for a long time.