This is perfect for watering any houseplant and ideal for those who travel, ensuring plants are properly watered. Some pots may require two or more plant fountains. Self-watering drippers provide an easy and effective solution during holidays by automatically maintaining optimal moisture levels in soil for potted plants. Flow can be controlled. The plant waterer features a control valve to adjust the drip rate, which is adjustable from 2 to 30 drops per minute. Simple and convenient with no complicated installation requiredjust drill small holes in the bottom of the bottle or cut the tip of the dripper. Delivers an accurate amount of water suitable for different plants and flowers. The nozzle fits bottles with a 1.1-inch opening, compatible with most beverage bottles but not suitable for narrow-necked mineral water or pure water bottles. Color: Blue + Green Material: Plastic Package Contents: 60 x Automatic Watering Devices Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1-3 cm.