1. This is suitable for watering any indoor plants. For people who travel frequently, it can ensure that their plants are properly watered. Some flower pots may need two or more plant fountains. 2. An automatic watering drip irrigation system is a simple and effective way to water plants during holidays. It can automatically maintain a good moisture level of the soil in potted plants. 3. 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. 4. 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. 5. The water volume is 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 not for mineral water bottles and purified water bottles. 6. Colors: Blue + Green 7. Material: Plastic 8. Package contents: - 60 automatic watering devices 9. Only the above - mentioned package contents are included, and no other products are included. 10. Note: Light reflection and different displays may cause slight differences between the colors of the items in the picture and the actual products. A measurement error of +/- 1 - 3 cm is allowed.