High-quality material is wear-, , , you can use them for a long time Adjustable 8-hole irrigation drippers: there are 8 holes on the top of the drippers, the water flow can be adjusted or closed by rotating the green cover, can be adapted to the water needs of different plants Easy to connect: each irrigation dropper is equipped with a 1/4 inch barb thread connection, which is suitable for 4mm/7mm (inside/outside diameter) pipes; simply connect the tube to the barb to create your own small water supply system Save water: it can be constant when placed for a long time or when the pressure fluctuates; even irrigation, slow watering speed can make the soil in the root area of the plant to absorb , save water by reducing most evaporation Wide uses: use irrigation drippers to create an irrigation system to evenly water the plants; perfect for watering potted plants, agriculture, lawns, flower beds, gardens, etc. colour:Green+black Material:plastic size:Connector: 4mm Package Contents: 100 x Irrigation drippers 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.