Product name: Automatic Flower Watering Device with Control Valve Packaging: Single OPP bag packaging (can be packed according to customer requirements) Product function: Leak-proof design, adjustable water volume Factory direct sales Customization available based on samples Color customization available Custom creative designs available Product instructions: Flow can be controlled. The plant watering device with control valve adjusts drip speed from 0 to 60 seconds per drop. Slow-release watering lasts 1 to 15 days. Simple and convenient to use, no complicated installation required. Just drill a small hole or several small holes at the bottom of the bottle for drainage. Precise water control provides appropriate water amounts for different plants and flowers, helping prevent overwatering or underwatering. Yellowing of older leaves may be natural, but yellowing of new growth could indicate improper watering. Fits popular bottle brands: Dr Pepper, Pepsi, Coca-Cola, Lipton, Diet-Cola, Aquafina, and other bottles with an inner diameter of 11 mm. Enjoy your vacation while keeping your plants watered. Ideal for vegetables, outdoor and indoor gardens, daily plant watering, potted plants, indoor plants, herbs, garden plants, hanging baskets, tabletop pots, hanging plants, small trees, and shrubs. Quantity: 30 pieces