【Adjustable valve】The flow rate can be controlled. The plant watering device with control valve can control the drip rate from 0-60s/drip and the continuous drip time from 1-15 days. Simply adjust the valve to suit your needs without complicated setup steps. Easy and Convenient No tools are required for installation, just drill a few holes in the bottom of the bottle or cut the end to maintain air circulation. 【Multi-scene application】Vegetables, potted plants, indoor plants, daily water plants, garden plants, herbs, hanging baskets, pots on the desks, hanging plants, outdoor gardens, small trees, shrubs. Packing List: 12pcs Auto Dripper We only sell, not other items in the picture. Due to the difference between different monitors, pictures may not reflect the actual color of the item. Please allow slight size error due to manual measurement.