Self Watering Probes are a simple and effective way of watering your plants while you are on vacation. The water will be slowly emitted through the device, automatically watering your plants without the need to set timers or worry about electronic devices being turned on while you are . Features - Color: Green. - Material: Plastic. - Size: 27x6x6cm - Filling 1.25L or 2L drink bottle to water your plant, very convenient. - 4 watering settings adjustable, from 1 drop per second to 1 drop per 47 seconds. - Using no power source, this plant waterer will automatically keep a potted at the optimum moisture level. - Ground , easy to fix without falling down. - Suitable for seeding, planting, pollution-free. It will now draw water into the pot as the plant needs it. - for people who travel and want to make sure their plants are properly watered. Package list: 12 x dropper accessory