360 Degree Adjustable: 8 spray holes and can adjust the water flow, also to shut off the water flow. Large water passages and self-rinsing action help prevent clogging. Connection: 1/4 inch barbed thread fitting, 1/4'' hose, suitable for 4mm/7mm (inner/outer diameter) tube. 【Make sure to put the connected part in water at 70~80° for 10 seconds before assembling. Once cooled, the tube will remain tight.】 Widely Used: Ideal for watering potted plants，For agriculture, lawn, garden drip sprinkler irrigation. Efficient Water Use: Able to maintain constant irrigation uniformity during long periods of spawning or pressure fluctuations, the slow watering rate allows the soil to absorb water more completely into the root zones of plants. Package Included: About 200x Micro Drippers. The drippers may cause some odor in the long-lasting package. Please open and put back the air convection in 1-2 days. The odor will disappear normally.