Adjustable valve: the flow can be controlled. The plant watering device with control valve can control the dripping speed from 0-60s/drop and drip water continuously for 1-15 days. Simply adjust the valve to meet your needs, no complicated setup steps required. Save time and water. Simple and convenient: No need to install any tools, just drill holes in the bottom of the bottle or cut the end of the bottle to maintain air circulation. Accurate water volume: For different plants and flowers with different water volume, plant sanitation has not been carried out. Other irrigation equipment is either too few or too many for some plants. Old leaves turn yellow and fall off, but if new shoots turn yellow, this may indicate too much water or not enough water. Easy to use: fits most bottles with an inside diameter 1.1 inch. For example: Pepsi, Coca-Cola, Deet Cola, Dr.pepper. No need to find another bottle to store water. No need for tedious installation; drill or cut holes in the bottom of
