A. This is quite suitable for watering any indoor plants. For those who travel often, it helps ensure that their plants get proper watering. Some flower pots might need two or more plant fountains. B. An automatic watering drip irrigation system is a simple and effective method to water plants during holidays. It can automatically keep the soil in potted plants at a certain moisture level. C. The water flow is controllable. A plant waterer with a control valve can control the dripping speed, which can be adjusted from 2 - 30 drops per minute. D. It is simple and convenient, not requiring cumbersome installation. You only need to drill a few holes in the bottom of the bottle or cut off the end of the tube. E. The water volume is relatively accurate, providing different amounts of water for different plants and flowers. The waterer has a 1.1 - inch diameter opening and is suitable for most beverage bottles, but may not be suitable for mineral water bottles and purified water bottles. F. Colors: Blue + Green G. Material: Plastic H. Package contents: - 60 automatic watering devices I. Only the above - mentioned package contents are included, and other products are not usually included. J. Note: Light reflection and different displays may lead to slight differences between the colors of the items in the picture and the actual products. A measurement error of +/- 1 - 3 cm is acceptable.