- Adjustable Speed: Tailor your watering experience to meet the specific needs of your plants with the adjustable flow control valve. This feature allows you to fine-tune the drip rate, ensuring optimal hydration while minimizing the risk of overwatering or underwatering. - Wide Compatibility: Our self-watering spikes are designed to fit most bottles on the market, accommodating bottle openings with a diameter of 1.10 to 1.18 inches. Please note that using incompatible bottles may lead to leaks, so we recommend sticking to the specified bottle types for a secure fit. - Time-Saving Solution: Free up your schedule with this automatic watering device, allowing your plants to self-water. Spend less time on irrigation and more time enjoying your plants and life. These self-watering plant inserts are suitable for a variety of plant types, including vegetables, potted plants, and houseplants. - Versatile and Convenient: Ideal for both indoor and outdoor plants, these self-watering spikes ensure your plants remain hydrated even in your absence. The 600 ml bottle provides slow watering for 1 to 7 days, while the 1.5-liter beverage bottle can extend the duration to 7 to 15 days, depending on the selected speed. Use Cases: 1. Perfect for busy professionals who want to maintain healthy plants without daily watering. 2. Great for vacations, allowing your plants to stay hydrated while you are away. 3. Suitable for home gardeners looking to reduce their maintenance workload while ensuring optimal plant health.