Wealers Self-Watering Probes - Indoor Automatic Watering System Houseplant Spikes for Plant (16) This watering device is really automatic, and suitable for seeding and planting Just put one side of the tube in a vase or bowl of water, and the other in plant Don't let your plants get too thirsty! Simple and effective tools to water your plants while you are on vacation Cable Length: 700mm; Package Quantity:16 Pcs , before you use this product, please refer Product Description