Product name: Automatic Flower Watering Device with Control Valve Conventional packaging: Single OPP bag packaging (packaging quantity can be customized according to customer requirements) Product function: Leak-proof design, adjustable water flow Factory direct sales, sample-based customization available, color customization available, custom design available Product instructions: Flow can be controlled; the plant watering device with control valve adjusts drip speed from 0 to 60 seconds per drop, providing slow-release watering lasting 1 to 15 days. Simple and convenient to use with no complicated installation—just drill a small hole or several small holes at the bottom of the bottle for drainage. Precise water delivery allows customized watering 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 such as Dr. Pepper, Pepsi, Coca-Cola, Lipton, Diet-Cola, Aquafina, or other bottles with an inner diameter of 1.1 inches. Ideal for use during vacations—keep your plants hydrated while you're away. Suitable for vegetables, outdoor and indoor gardens, everyday plant watering, potted plants, indoor plants, herbs, garden plants, hanging baskets, tabletop pots, hanging plants, small trees, shrubs Quantity delivered: 10/20/30 pieces