Small watering balls: The size of the plant watering ball is about 13 x 5 cm, and the capacity is about 13 x 5 cm. responds to most daily needs. You can see the quantity of water remaining at through the transparent sphere. No more daily watering: These watering balls can provide water to plants at any time. long term, contribute to maintain good nutrition and are suitable for business trips or vacations. Easy to use Use: Simply pour water into the automatic plant watering ball, then insert it into the soil. Water seeps slowly to achieve self-watering of plants. Automatic plant watering: Plant irrigation balls are made of high quality PVC material, small and lightweight, not easy to do break and durable. Multiple use: Watering balls are perfect for potted plants, hanging plants, garden plants and other indoor or outdoor plants, and are the best option to take care of your plants when you are on a business trip or on vacation.