Automaticity: The flow rate can be controlled, and the plant sprinkler device with a control valve can control the drop speed and slowly drain the drop.Easy to install: Simple and convenient, no cumbersome installation, just drill a few holes in the bottom of the bottle or cut the tail of the bottle.Safe Watering: Precise water volumes to supply different plants and flowers with different amounts of water does not become plant killers, other irrigation plants have either too little or too much water. With some plants, old leaves turn yellow and fall off. However, if the new growth is yellow, it may be a sign of over or under waterWide Applicability:Suitable for varieties of commonly used branded bottles, or any other bottles with 1.1 inch inner diameter.A convenient and practical watering tool for people who are always out and away from home. Garden Helper:Enjoy your family vacation and leave your plants to me. Plant your own watering nails, indoor and outdoor gardens, daily water plants, potted plants, indoor plants, herbs, garden plants, baskets hanging, sinks, hanging plants, small trees, shrubs.