High quality material: Our faucet aerators and aerator key are made of high quality chrome-plated brass with the addition of a non-toxic and very durable ABS plastic filter, which adapts perfectly to a 24mm outlet. Easy Installation: No tools required for installation. It's very simple, you just use your hand and directly tighten the water saver or if you want you can use a wrench to tighten it more tightly. Save water: Thanks With these faucet aerators, you can now save water, have a steady water flow, create air bubbles, lead to high pressure and low water consumption. Suitable for bathroom and kitchen faucets. Anti-slip rubber: Our aerator wrench can be used also to remove the faucet as well as the aerator, it has an anti-slip rubber. slip-resistant, then the aerator shell can be removed more easily and thus you won't damage it. Package: 15pcs faucet aerators, outer diameter: 23.6mm, height: 13mm, size thread size: M24. 1 aerator tap Suitable for; M20, M22, M24, M28. Ideal for bathroom and kitchen faucet