Adjustable Speed Design: Watering plants with control valve can control the dripping speed, you can adjust the traffic to 3-7 days or more according to the time you need, and never kill your plants because the water flows too fast or too quickly. Easy to use. Just tighten the drip irrigation devices, then stick them into the ground without nails or danger. Our automatic watering system is ideal for watering indoor flowers, outdoor plants or your vegetables on vacation. Fits Most Bottles. The self-watering feeder is suitable for many sizes of bottles. 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. ;Note: The data is all measured manually, please allow an error of 1-3 cm, due to the difference in light and display, there will be a certain color difference, the actual received object shall prevail.