6pcs Automatic Watering Spikes, Automatic Plant Watering Device, Automatic Drip Irrigation with Slow Release Control Valve Switch Adjustable water volume drip irrigation system Slow release control valve, watering speed can be adjusted. About 500ml water 5-7 days, 2000ml 7-20 days. Irrigation Dripper for All Bottles The upgraded automatic watering spout fits all normal size bottles in everyday life, from 2cm to 3cm. Don't waste time looking for the right bottle, most bottles are irrigation systems Works automatically. Automatic Self-Watering Drip Irrigation No tools required for installation. Screw on the regulating valve. Tighten the bracket. Insert the bottle into the water. Inverted drinker for plants and bottles, inserted into the ground. RELIABLE MATERIALS Our plant watering nails are made of high quality PP plastic, recyclable and eco-friendly, strong and durable. Our irrigation drippers guarantee a long service life for everyday use. Suitable for a variety of scenarios The automatic watering nail device is a useful companion for your plants, whether your plants are indoors or outdoors, at home or in the office. Enjoy the holidays with the family and leave the plants to me! product description Features We are always striving to provide the perfect plant watering equipment that is convenient and practical. Improvement: Our improved automatic spout is easier to use and fits most bottles. No more drilling holes in the bottom of the bottle. Convenience: The convenient adjustable valve design of the dripper can control the dripping speed to meet your needs. Automatic Drip Irrigation: Easy to install and insert plant drinkers into the ground to keep your plants alive. Instructions 1. Screw the stand onto the plant waterer, the stand will support the bottle. Screw the regulating valve onto the automatic watering nozzle. You can adjust the water flow by screwing the valve to the right or left. Pour the water into a suitable bottle and insert the automatic plant watering device into the bottle. Turn the bottle upside down, insert the plant watering device into the soil, and adjust the drops to meet the individual needs of the plant. Specification Material: PP Dimensions: 16.5 x 5.5 cm Recommended bottle size: 2cm - 3cm Maximum water capacity: 2000 ml Package includes 6 automatic plant watering devices