Water Timers Product Details: Product Name: Water Level Gauge Type: Water Shortage Reminder Diameter: About 15mm Specifications: 9.5 X 16.5cm(120#), 12 X 20cm(150#), 14.5 X 22cm(180#), 26 X 36cm(300#). Package Included: 1 Piece X Water Level Gauge (Type Of Your Choice) Features: 1. No Battery Or Power Required, Plug And Play. 2. The Water Level Gauge Is Used For Flower Pots. It Can Show The Water Level To Remind You To Water. 3. When There Is No Water In The Pot, The Float Of The Water Level Gauge Will Be At The Bottom. On This Strip, Pull Up The Water Level And Water The Plants Through The Holes. 4. Just Insert The Spirit Level Into The Soil To Help Your Plants Grow Healthily. Describe: Perfect Tool: The Water Level Reminder Is The Perfect Tool For Indoor And Outdoor Use. It Can Show The Water Level And Can Remind You To Water When There Is No Water. Simple And Convenient: The Water Level Gauge Is Simple And Convenient To Use. Practicality: When There Is No Water In The Flowerpot, The Buoy Of The Water Level Gauge Will Be At The Bottom. When You Pour In The Right Amount Of Water, The Buoy Floats. Wide Range Of Application: Suitable For All Kinds Of Flower Pots And Grass Pots. High Quality: These Plant Water Meters Are Made Of High Quality Materials, Practical And Durable.