Adjustable drip irrigation system, automatic cleaning, water erosion corridor, anti-jamming performance. With a 1/4 inch barbed wire connection, it is perfect for potted plants For 4mm / 7mm tube (inner / outer diameter). It can remain unchanged or pressure oscillations for a long time, water evenly Automatic cleaning, water erosion flow channel, anti-jamming performance to keep constant when long placement or pressure fluctuations, Irrigation uniformity material: plastic Adjustable flow range: 1-70L / h Operating pressure: 1-3 KG Perfect for irrigation Only the contents of the previous package, other are not included. Note: the of light and the different screens can cause the color of the article in the to be a little different from that of the real thing.The allowed measurement error is +/- 1-3 cm. Colour:Red + black Material:PLastic Size:15*15*25mm Package Contents: 200*Dripper Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.