brand new and high quality Features: The product adopts PP and POM, the quality is stable, and it can be used for a long for time. Suitable for long-row plants and individual plants for drip irrigation. Water flow rate of the dripper is 4L/H or 8L/H. This is a commonly used size for water filtration systems, water coolers, etc. Regardless of the pressure change, the constant outlet pressure is compensated. Self-cleaning. It has a 1/4 inch barb threaded connection. This 4L 8L pressure compensation dripper is widely used in garden irrigation, balcony gardening, garden irrigation and other places. Specifications: Material: PP + POM Size: approx.2cm/0.78in Optional Style: 4L,8L Color: Blue+Black Quantity: 200 Pcs Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Content: 200 x Irrigation Dropper (other accessories demo in the picture is not included.)