Adjustable Flow: With a slow drain control valve switch, the plant watering nozzles can control the speed of the flow, the drip speed is 0s/1-90s/1 drop, drainage slow takes 1-15 days, it depends on you. Easy to use: no tedious installation, just drill a few liters at the bottom of the bottle or cut it and tighten the peak d then insert the self-watering nozzles into the soil. Compatible Bottles: Updated to the irrigator, our plant grow spike fits almost all types of bottles which are easy to find. Spike Holder: Each self-growing spike comes with a stand, so plant growth spikes are outside even in strong winds. Enjoy Your Vacation: Enjoy the time with your family, this self-cultivation system for plants will take good care of your vegetables, indoors and outdoors, water plants, garden plants. pot, indoor plants, herbs, terrace plants, H ngek rbe, desk plants, hanging plants, small B ume, shrubs.