Fangrui Product Details Boost Plant Health: These Self-watering Balls Automatically Supply Water To Plants As The Soil Becomes Dry, Ensuring Optimal Moisture And Nutrients. The Watering Balls Gradually Release Water And Stop When The Soil Is Saturated, Providing A Self-regulating Watering System That Supports Plant Health. Convenient Top-fill Design: Easily Refill These Watering Balls Through The Top Opening. Simply Insert The Watering Ball Near The Roots Of Your Plant, Fill To With Water, And Secure With The Included Rubber Stopper. The Watering Ball Will Water Your Plants For 3-7 Days, And Up To 2-3 Weeks Depending On Soil Moisture. Versatile Indoor And Outdoor Use: These Watering Spikes Are For A Variety Of Environments, Including Gardens, Homes, Offices, And Schools, And Are Suitable For Any Plant Size, From Hanging Baskets To Large Patio Plants, Ensuring Your Greenery Thrives In Any Environment. Durable And Decorative: Made Of High-quality, Durable Glass, These Hand-blown Self-watering Balls Are Not Only Practi