A plant watering unit with a control valve can control the drip rate. The plant watering system requires no tedious installation, just unscrew the drip irrigation unit and stick it into the ground, no nails and no hazard. Our automatic watering systems are perfect for watering indoor flowers, outdoor plants or vegetables while on vacation. Self-watering nails are available in different bottle sizes. You are no longer limited to 1.1" ID bottles. The tilt stand helps your automatic irrigation system not tip over after adjustment, despite the large bottle size. 15 pieces of automatic watering system, it humidifies your plants to make your plants more green and lush. Properties: Can adjust the water follow speed more effectively with no problem. Depending on the number of days of your vacation, the slow-release drip can last from 3 to 20 days without the need to water every day. No longer limited to 1.1 inch ID bottles. For better work results, we recommend small bottles. CONTROL FLOW RATE DESIGN The automatic watering drippers design with control valve can control the dripping speed from 0 to 60s/drop. You can adjust the flow rate of the self watering planter to suit your needs to keep your plants on vacation to maintain. LONG CONTINUOUS WASHING Large capacity and long watering time than other pot drip irrigation equipment, can keep the drip distance up to 3-20 days in your vacation. easier protection of plant flowers. SUITABLE FOR ALL BOTTLES You are no longer limited to finding 1.1 inch ID bottles. The upgraded watering device connector fits over 95% of bottle opening on the market and is very convenient to use.