Quantity & Dimension: Includes 6 pieces of faucet inserts; Faucet insert size: 19 x 11 mm/0.75" x 0.43"(D*H); Height: 11 mm; Fits faucets: 22 mm (male), M20 (female); universal replacement part for faucets. Please check the size of your faucet before purchasing. Save water: When using the faucet, the regulators save water flow and provide a smooth water flow, enough air bubbles to prevent splashing and save water. Multiple functions: The faucet can filter out most of the sediment, limescale and slag, with good sealing so that there is no leakage; Limit the water flow to the faucet without reducing the water pressure, prevent splashing and reduce the noise of the faucet Usage: Suitable for installation and replacement of faucet accessories in homes, hotels, public facilities and other places, used to facilitate water and is good for saving water Water pressure adjustment: Increases the water pressure. It can prevent water from overflowing and the mixing ratio of water and air is appropriate, which enhances the water pressure, the water becomes soft and no splashing, cleaning becomes more convenient. Easy to install and use When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please do not hesitate to contact us. We are here to help and will do our best to help you. Thank you for choosing our product. We hope you like it