Adjustable irrigation drip sprinkler drip irrigation system, automatic cleaning, start water erosion runner, anti-clogging performance. With a 1/4-inch barb thread connection, it is Perfect for potted plants For 4mm / 7mm (inner / outer diameter) tube. Can remain unchanged or pressure fluctuations for a long time, water evenly Color: black and red Material: plastic Item Package Quantity: 200 Automatic cleaning, the starting water erosion flow channel, anti-clogging performance Able to Maintain constant when Long laying or pressure fluctuations, irrigation uniformity Material: Plastic Adjustable flow range: 1-70L/h Working pressure: 1-3KG Great for watering potted plants Has a 1/4-inch barb thread connection Suitable for 4mm/7mm(Inner/ Outer diameter) tube Package Includes: 200 x Adjustable Irrigation Sprinkler Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.