Evelots Self Plant Watering System-Automatic-29 inch Long-Indoor/Outdoor-Set/3 This set of 3 stakes are great for keeping your plants healthy and watered to the perfect amount. A great tool to have while you are on vacation or gone and unable to take care of your plants. To use, simply place the end of the tube into a vase or container of water an elevate it so that the container full of water is higher then brim of the plant's pot. Then put the watering stake all the way into your plants soil so that the white ceramic piece is fully submerged into the soil and is not showing. The watering stake will suck the water through the tubing and infuse your plant to hydrate it when needed. No more worrying about over watering, these devices will take the guess work out of it! Can be used indoors and outdoors, on a porch, deck, and more. The tubing measures 29.5 inch long. The 3 stakes are 4.25 inch tall. Trusted vendor. For years Evelots has provided unique products with a 30 day easy return policy, and 100% satisfaction guarantee.