Features: 1. Use durable ABS, safe to use, easy to disassemble, and long service life. 2. 5 sizes of keys: These faucet release keys are available in 5 different sizes, M16.5, M18.5, M21.54, M22.5 and M24. Various sizes can meet your different needs. 3. The clogged aerator can be replaced or cleaned, and the low-flow faucet can be effectively fixed, allowing you to unblock the water flow again. 4. The standard size faucet aerators, great replacement faucet aerators for Bathroom or Kitchen, ensure the smooth flow. 5. Easy to use, it only takes a few minutes to replace, saving time and effort. Material: ABS Size: M16.5M18.5M21.5M22.5 M24 includes:5 x Faucet Aerator Key Removal Wrench Quantity:5Pcs Note: Manual measurement, there may be 1-2cm/1-3g error, which is not a quality problem. Due to different screen displays, there may be a color difference between the real object and the picture, and the main picture shall prevail.