MATERIAL:Shower restrictor is made of POM material, and the outside is made of special chrome plating, which has good anti-rust effect. SUPER D-SAVING FUNCTION WATER: Shower restrictor can reduce tap water consumption by 30%-80%, just tighten it more or less to restrict the flow of tap water, saving money. TAP TIP: This water-saving faucet tip has an anti-clogging feature to ensure long life and easy cleaning. REMOVABLE WATER SAVER: Easily install and remove this water saver tip in seconds. No tools required, just screw or unscrew for easy installation. WIDELY USED: Shower hose water flow restrictor set can be installed in bathtub faucet or shower faucet, the bathroom water saver is suitable for shower, toilet, kitchen, hotel. Advantage: Shower current limiter set - up to 70% water saving of 4 liters / minute. A water flow restrictor for a shower hose. Special coating for installation in bath or shower taps. Save up to 150 on water bills every year. Package includes 3 different process plugins to suit your needs: Green insert reduces water flow to 4 liters / minute . The blue insert reduces the water flow to 6L / min. The yellow insert reduces the 9 liters / minute water flow. Specification: Material: Brass Chrome Plated Thread Size: 1/2 Inch Suitable For 95% Shower Faucets Weight: 25 Grams Package includes: < p>1X copper 1 X seal 1 X green water saving tablets < p> 1 X Blue Water Saving Tablet 1 X Yellow Water Saving Tablets