Adjustable Speed Design:The plant waterer with control valve can control the dripping speed. You can adjust the traffic from 3 to 20 days or more according to the time needed and never kill your plants because the water is flowing too quicklyor too fast. Easy to UseJust tighten the drip irrigation devices, then insert them into the ground without any nails or danger. Our automatic irrigation system is ideal for watering indoor flower, plantoutdoors or your vegetables on vacation. Fits Most BottlesThe self-watering chuck is suitable for bottles of many sizes. They are no longer limited to bottles with an inside diameter of 1.1. The new dripper is suitable for 0.8-1.2 inch bottles The tilting holder helps your irrigation system not toppling over, even if the suitable bottle is too large. Dont waste time finding the right bottle. Enjoy your profession Healthier plants Enjoy your vacation with your family, leave your plants to me, water your plants and vegetables yourself, and let your plants thrive. Three colors: It measures 16.5 cm long, 5.5 cm wide and 30 mm in diameter. Automatic flower watering has good permeability, and the watering speed can be adjusted. The nail for watering potted plants can be used forplastic beverage bottles. Features: 1, can adjust the water speed more efficiently without any problem. 2, depending on how many days of your vacation, the slow release drip can last 3-20 days without watering every day. 3, no longer limited to 1.1 inch ID bottles. We recommend small bottles for best work results; Usage: 1, Install the drip regulator. 2. Install the threaded plug. 3. Connect the dropper to the bottle filled with water. 3, install the dripper and the bottle filled with water together; 4, Turn the bottle upside down, place the pipette in the bottom and adjust the water flow (no tools needed during the installation process)