[Flow Limiter]: Includes 8 water-saving flow restrictor 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 identification and selection of the desired flow rate. Long service life: Housing made of copper; inserts made of durable plastic — resistant to rust, wear, and deformation; provides good insulation. Easy to install: No tools required. Simply unscrew the shower head from the hose, insert the appropriate flow restrictor, then reattach the shower head. Quick, tool-free installation and replacement. Water and cost savings: Optimizes water usage and reduces waste. Using appropriate flow restrictors can reduce water consumption by 20%–80%. [Wide Application]: Compatible with faucets and shower heads featuring standard 1/2-inch threaded connections. Suitable for bathroom showers, sink faucets, and kitchen taps. Select the preferred flow rate based on your needs. Material: Plastic (inserts), Copper (housing) 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 screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.