Adjustable Flow Drip Irrigation SprinklersSuitable for 4mm ID tube. Flow: 0-70L/H. Working pressure: 2-4 kg. You will get 200Pcs drip emitter, including 50Pcs red, 50Pcs blue, 50Pcs green and 50Pcs black. Sufficient quantity and variety of colors for you daily use and replacement at any time. Professional Grade Drip EmitterThe drip irrigation sprinklers are made of durable and high quality plastic. Each drip emitter has 8 spray holes, which can can which can adjust the water flow for drip irrigation or 360-degree spray irrigation. Easy to UseThe rotation of the cap allows the downward flow and diameter to be adjusted through the ratchet mechanism on the cap and the notch on the base to completely close. This drip irrigation sprinklers can adjust the flow, turn it to the left to close it, and turn it to the right to adjust the flow. Stability and PracticalDrip emitters can be kept constant and even irrigated when it is placed for a long time or when the pressure fluctuates. If you are on a business trip or during traveling, this product could help water your plant every day automatically. Help you to save resources, save time, save money and save water Wide ApplicationsPlease soften the hose with hot water to achieve a better connection before use. Suitable for potted plants, gardens, patio, lawn, flower beds, terraces or other agricultural irrigation. Also fit for home gardening, agricultural production, public green space, garden production.