Product parameters: Color: blue, green Material: plastic Diameter: 2.54cm / 1.1inch Package contents: 12 pieces automatic watering set Product Description: First Step Insert the valve into the irrigation mandrel. First, you can easily align the valve opening in the set with the casting nail and insert it into it with a small amount of force. Second step When you have carefully inserted the valve into the pouring pen, you can place a clinker bottle on the refill pen, place the mouth of the plastic bottle against the pouring pen, and then cut off the bottom of the bottle. Third step Fill the bottle with water. After making sure that the water bottle is installed on the pouring pen with no water leakage, you can add water to the bottle to water it. Fourth step Turn Turn the rotary knob to adjust the flow rate. After doing the above SAfter completing the steps, you can place the dropper where you need it: turn the valve to adjust the flow rate of the set water. A device that saves you time The dropper is a device that which saves you time and energy. The automatic irrigation delivers water directly to the roots of the plant.The automatic irrigation system eliminates the hassle of forgetting to water or being left unattended.You don't have to water it every day. Installation takes little time.After the installation is complete, you can have more time to spend with your family, child, and more.Time to do other things for yourself This is a very convenient product for the family