Holiday Autoplant Watering Post: 12 in. tall, 3.35 in. Dia Up to 2-weeks without micromanagement, Just fill with water, flip and press into the soil and it will automatically water your plants. Holidays no longer mean your dead plants. EASY TO USE - Just fill up with water, insert the water polo and admire your healthy plants. Energize your plants - Watering Balls keep plants healthy by providing the perfect amount of hydration. When the soil dries, the ball will release water back into the soil at the correct moisture level. Beautiful radiant colors - each hand-blown glass sphere is unique. Colors vary, with translucent blues, reds, navy and turquoise swirling into unique patterns. Add decoration to your house and garden to make it more beautiful. Our automatic plant watering stakes are 12 in. tall and have a ball diameter of 3.35 in., which is 20% larger than most competitors.