1. Adjustable valve irrigation: These automatic plant sprinklers with regulating valves can control the drip irrigation speed to be 0 - 60 seconds per drop. The slowly released water droplets flow into the automatic water supply station, and the duration can be 1 to 15 days or even longer, depending on the required time. 2. Materials: This plastic irrigation bottle is made of ABS plastic, which has good cold - and heat - resistance performance, and is safe and non - toxic. The long conical bottle mouth design makes it easy to reach the plant roots. 3. Easy to use: It adopts bottle - style drip irrigation, is quick to install, and does not need to be rotated. You just need to place it. As a plant sprinkler, it can directly supply water to the plant roots and is suitable for most plants. The flow rate is easy to control, ensuring that plants get the right amount of water. 4. Multi - scenario application: This irrigation plastic bottle is suitable for vegetables, indoor and outdoor gardens, hanging plants, small trees, shrubs, plants that need watering daily, potted plants, indoor plants, herbs, garden plants, hanging baskets, water troughs, etc. 5. Suitable for holidays: When you are on vacation or a business trip, it can take care of your plants, so you don't have to worry about the plants withering.