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 drip irrigation devices 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 bottlesSelf-watering chuck is suitable to bottles of many 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 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: orange, blue and green It is made of environmentally friendly PP plastic It measures 16.5 cm long, 5.5 cm wide and 30 mm in diameter. The automatic flower waterer has good permeability, and the watering speed can be adjusted. The nail for watering potted plants can be used for bottles plastic drinkware. Features: 1, can adjust the water speed more efficiently without at no 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