- Save Time with Automatic Watering: Our automatic watering device allows your plants to self-water, freeing up your time for other activities. Spend less time on maintenance and more time enjoying your plants and life. Perfect for various plant types, including vegetables, potted plants, and indoor plants. - High Compatibility: Our watering spikes are designed to work with most standard bottles, accommodating openings with a diameter of 1.10-1.18 inches. Please ensure compatibility to prevent leakage, as other bottle types may not fit securely. - Versatile Hydration: Ideal for both indoor and outdoor plants, these watering spikes provide consistent moisture even when you're away. A 600ml bottle offers slow watering for 1-7 days, while a 1.5-liter bottle can extend watering up to 15 days, depending on your chosen speed. - Educational Tool: Use these watering spikes to create a natural classroom environment for children. The device utilizes atmospheric pressure to accurately regulate water flow, promoting an interactive learning experience and fostering exploration in natural sciences. With this automatic watering system, you can ensure your plants stay healthy and hydrated while simplifying your gardening routine. Experience the convenience and practicality of our self-watering planter inserts today.