360 degree adjustable: 8 spray holes and can adjust the water flow, also to cut off the water flow. Large water passages and self-flushing action help prevent clogging. Connection: 1/4 inch barbed thread connection, 1/4'' pipe, suitable for 4mm/7mm tube (inner/outer diameter). 【Be sure to put the connected part in 70~80° water for 10 seconds before assembling it. Once cooled, the tube will stay tight.】 Widely used: Ideal for watering potted plants，For agriculture, lawn, garden drip sprinkler irrigation.</p > Efficient water use: Able to maintain constant during long periods of laying or pressure fluctuations, irrigation uniformity, slow watering rate allows the soil to absorb water more completely into the root zones of plants. Package Included: About 100x Micro Drippers. Drippers may cause some odor in long-lasting packaging. Please open and put the air convection back on in 1-2 days. The smell will disappear normally. Color red Size: 15*25mm Quantity delivered: 100 pieces