Specifications: Material: Plastic Color: Blue-Green Working Method: Gravity Package Contents: 12 * Watering Device 【Adjustable Speed Design】The plant watering device with valve control can control the drip speed. Different plants have different absorption rates, so the plant watering stakes have an adjustable control valve. Prevent overwatering and keep plants healthier, great for scientific planting. 【Automatic Watering】The latest plant watering design with water storage design effectively prevents water from leaking from the thickened bottleneck, solid support structure design, and draining self-watering devices during use. The improved design of plant watering devices can ensure that the water pressure is not affected by the lowering of the water level. 【Easy to Use】The plant watering system requires no installation, simply tighten and run the drip irrigation devices. Water indoor flower plants, outdoor plants, or your vegetables while on vacation. 【Two Colors】Blue and Green. It is made of preferred environmentally friendly PP plastic. The automatic plant watering system has an interface design and has good permeability. Perfect for short business trips or short vacations.