Material Quality: The shell of the shower restrictor is made of high quality copper and the flow insert is made of plastic, which has a good anti-rust effect. 3 Different Flow Inserts: The kit contains 3 different flow inserts to suit your needs. 1. The green plug-in reduces the water flow to 7 l/min; 2. The blue plug-in reduces the water flow to 4 l/min; 3. The yellow plug-in reduces the water flow to 9 l/min. Super Water Saving Function: Just like a faucet insert in a basin mixer will cause a reduction in liquid flow, while allowing users to enjoy a consistent and effective water diffusion effect. The high performance of the restrictor can reduce water consumption. Easy to Install and Remove: Easily install and remove this water saver tip in seconds. No tools required, just screw it on for easy installation. Wide Range of Uses: A set of water flow restrictor for shower hose can be installed in bathtub faucet or shower faucet, bathroom water saver is suitable for shower, toilet, kitchen , at the hotel. Product Description: Inside the package there is a housing for a shower restrictor and three inserts with different flow rates.< /p> -This water-saving faucet tip has an anti-fouling function to ensure long life and easy cleaning. Suitable for 95% shower faucets. p> Set of water flow limiters for shower hose. Special coating, fitted in bathtub mixer or shower mixer. Specification: Material: Copper, Plastic Color: Yellow, Blue, Green, Silver Size: As Picture Shows Quantity: 4 Pieces Package Includes: 1 x Shower Restrictor Housing 1 x Flow Insert Notes: 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures. 2.Please allow slight Dimension difference due to different manual measurement.