1.FunctionREPLACE THE FILTER IN THE BATHROOM OR KITCHEN: The aerator on your faucet can restrict water flow. Upgrade your faucet with a new aerator for a refreshing, unrestricted flow. 2Non-Splashing18.5 MM/0.73 INCH PLUG-IN FLOW RESTRICTOR:make your water use more efficient. It is made with an 18. 5 mm/0.73inch plug-in flow restrictor. 3.High-quality ABS material Faucet aerator and key removal wrench are made of ABS plastic, which can be reused for a long time. 4.Package includesContains 6 pieces of 18.5mm / 0.73 inch buffer faucet replacement parts inserted into the aerator + 2 pieces of disassembly wrench . 5Easy to installThis product includesreplaceable filter ,Disassembly wrench .No professional workersSame that can be easily installed to replace the original filter for your bathroom or kitchen faucet.