Features:1 Use durable ABS, safe to use, easy to disassemble, 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 M24 Various sizes can meet your different needs 3 The clogged aerator can be replaced or cleaned, the low-flow faucet can be effectively fixed, allowing you to unblock the water flow again 4 The stard 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 effort Notice:1 Actual color may be slightly different from the image due to different monitor light effect2 Please allow 1-3cm deviation due to manual measurementMaterial: ABSSize: M16 5M18 5M21 54M22 5 M24includes:5 x Faucet Aerator Key Removal Wrench