[Flow limiter]: Includes 8 water-saving inserts in different flow rates: 4L/min, 5L/min, 6L/min, 7L/min, 8L/min, 9L/min, 10L/min, and 12L/min. Also includes 1 adapter and 1 silicone seal. Color-coded inserts allow easy selection of the desired flow rate. Long service life: Housing made of high-quality copper; inserts made of durable plastic. Resistant to rust, corrosion, and wear. Safe, robust, and electrically insulating. Easy to install: No tools required. Simply unscrew the shower head from the hose, insert the appropriate flow regulator, then reattach the shower head. Water and cost savings: Helps optimize water usage and reduce waste. Using appropriate flow limiters can reduce water consumption by 20%–80%. Wide application: Compatible with faucets and shower heads featuring 1/2-inch threaded connections, including bathroom, shower, and kitchen fixtures. Material: Plastic Color: As shown Package contents: 1 x flow connector (23 x 22 mm) 8 x water-saving inserts 2 x washers Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.