LULI Plant Watering Device,12 Pieces of Self-Plant Watering Nails with Slow-Release Control Automatic Watering Device…
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※??【ADJUSTABLE SPEED DESIGN】: the automatic watering peak with control valve can control the dripping speed of 0-60 s / drop. plant watering spikes can set the flow rate to 3-15 days or more as needed, and never kill your plants because the flow is too fast or too slow.
※??【SIMPLE AND CONVENIENT】: it can be installed without any tools, just drill some holes in the bottom of the bottle or cut the tail of the bottle to keep the air flowing, and then insert these automatic watering nails into the soil.