360 Degree Adjustable: 8 spray holes and can adjust the water flow, even to interrupt the water flow. Large water passages and automatic flushing prevent blockages. Connection: 1/4" hook thread connection, 1/4" hose, suitable for 4mm / 7mm (inner / outer diameter) hose. Make sure to place the connected part in 70-80C water for 10 seconds before assembling. After cooling, the hose remains leak-proof. Widely used: Ideal for watering potted plants, agriculture, lawn, and garden drip irrigation. Efficient water usage: Can be kept constant when long-term installation or pressure variations occur. Even watering and a slow watering rate allow the soil to absorb more water into the root zones of plants. Package includes: 200 micro drippers. Droppers may have an odor in the package over the long term. Open and hand where air convection is in 1-2 days. The odor will disappear normally. Features: Adjustable flow rate: 0-70 l/h. Suitable for 4 mm / 7 mm (inner / outer diameter) tubes. Features: Good sealing and long service life. Automatic cleaning, start-up water erosion channel, anti-clogging protection. Can remain constant under long-term installation or pressure fluctuations, watering uniformity. Ideal for automatically watering potted plants. 1/4" thread connection. Use water efficiently and save water.