ECO-FRIENDLY AND DURABLEThe automatic plant watering spikes system made of high quality PP plastic and you can use them repeatedly because each irrigation dripper ensures a long service life. The automatic plant waterer for outdoor plants with high strength and toughness, good heat and cold resistance, safe and durable. Efficiently recycle plastic bottles, this reduces waste and protects the environment. ADJUSTABLE SPEED DESIGNThe plant watering device with control valve can control the drip speed from 0-60s\/drip. You can set the traffic to 1-15 days or more depending on the time you need and will never kill your plants because the water runs too fast or too slow. SUITABLE FOR DIFFERENT BOTTLES Self watering tips are suitable for most bottles. It can not only be used for 1 inch bottle, but also the new waterer suitable for 0.8-1.2 bottle inches. Dont waste time finding the right bottle, most bottles operate the automatic plant watering system. Like the bottle of Coca-Cola, the bottle of soda, even the bottle of wine. ENJOY YOUR HOLIDAYWithout worrying about your plants withering while enjoying your family vacation. Our automatic potted watering system is a useful helper for gardening, you dont have to take care of your plants every the days. MULTI-SCENE APPLICATIONThis self-watering spike system can be used indoors or outdoors, home or office to ensure your plants are hydrated. tree, shrub or any other plant. Specification: Material: PP Plastic Color: blue and green Size: 13.5x2.7cm\/5. 3*1. 1 inch Quantity: 12 pieces Easy to use: 1. Insert the control valve into the plant waterer. 2. Drill holes in the bottom of the bottle or cut it. 3. Regulate the speed of the flow according to your needs. 4. Turn the bottle upside down and insert the watering spikes into the ground. Plant worry-free with our automatic watering device - This plant watering system is made of durable PP plastic which can last a long time and reduce waste. - Precisely control the flow and give an appropriate amount of water for different plants and flowers. - This automatic watering device fits most bottles with an inner diameter of 1.1 inches, easy to find. - Large capacity, longer watering time than other drip irrigation devices, can maintain drip for up to 15 days. - Our automatic watering system is ideal for watering indoor flower, outdoor plant or vegetables. Easy to use: 1. Insert the control valve into the plant waterer. 2. Drill holes in the bottom of the bottle or cut it. 3. Regulate the speed of the flow according to your needs. 4. Turn the bottle upside down and insert the watering spikes into the soil.