1. Materials: The faucets and wrench-type aerators feature a stainless-steel body and an ABS filter. These spray regulators are non-toxic, wear-resistant, and rustproof, providing a stable, reliable, and long service life. 2. Installation: Installation usually doesn't require tools. The operation is relatively simple. You can twist the aerator by hand or use a wrench to tighten it. 3. Water conservation: Using these faucet aerators may help save water, offer a smoother water flow, and generate bubbles. These effects can create a high-pressure situation and potentially reduce water consumption, making them suitable for bathroom and kitchen faucets. 4. Non-slip rubber: The faucet aerator wrench can be used to remove the original aerator. Its surface is covered with non-slip rubber, which generally allows you to remove the aerator cover without causing damage. 5. Package contents: The package includes 15 faucet aerators with an outer diameter of 23.6 mm, a height of 13 mm, and a thread size of M24; 1 faucet aerator wrench, compatible with M20, M22, M24, and M28 specifications, suitable for bathroom and kitchen faucets.