Features: 6PCS auto plant watering spikes for irrigating your plants when you are not at home, slow dripping, no need to worry your plants anymore. Designed with a regulating valve for controlling the flow rate, suitable for different plants and flowers. Easy to use, just install a bottle on the watering spike, and install the regulating valve on the spike to adjust the flow rate, then plug it into the plant soil. Can be used with bottles of various sizes. Perfect fit for potted plants, indoor plants, flower, hanging plants, etc. Specifications: Length: 16.5cm/6.5in Material: Plastic Color: Multicolor Weight: 140g/(6PCS) Size: 16.516.55.5cm/6.56.52.2in(6PCS) Package List: 6*Self-Watering Spikes