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 Simple and convenient, without cumbersome installation, just drill a few holes in the bottom of the bottle or cut the tail of the bottle Volumes Precise water volumes to feed different plants and flowers with different amounts of water do not become plant killers, other irrigation plants have either too little or too much water. With some plants, old leaves turn yellow and drop off. However, if the new growth is yellow, it may be a sign of over or under water Fits commonly used brand name bottle varieties, or any other 1.1 inch diameter bottle indoor.A convenient and practical watering tool for people who are always out and away from home. 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, hanging baskets, sinks, hanging plants, small trees, shrubs. Number of pieces delivered: 4 Colour: dark green Size: 11cm long Note: The data is manual measurement, please allow 1-120cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.