Adjustable Speed Design: Plant waterer with control valve can control 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 flows too quickly or too quickly. Easy to use Just tighten the irrigation devices drip and then drive them into the ground without any nails or danger. Our automatic irrigation system is ideal for watering the indoor flower, outdoor plant or your vegetables on vacation. Fits Most BottlesThe self-watering chuck is suitable for many bottles sizes. They are no longer limited to bottles with an inside diameter of 1.1". The new dripper is suitable for bottles from 0.8 to 1.2 inches - The tilting support helps your irrigation system not toppling over, even if the suitable bottle is too big.Don't waste time to find the right bottle. Enjoy your professionHealthier 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: orange, blue and green It is made of eco-friendly PP plastic It is 16.5cm long, 5.5cm wide and 30mm in diameter.The automatic flower waterer has good permeability, and the watering speed can be adjusted.The potted plant watering nail can be used for plastic drink bottles.