Change the way you garden with the advanced TruDrop Flex self-watering insert and water level indicator: Rotate these patented inserts into one of our Flex planter covers to convert them into self-watering containers that can keep your plants hydrated for weeks. Our innovative water level indicator takes all the guesswork out of watering; once the two indicators disappear it's time to water again. Want to change your plants? Easily lift the insert from cover and replant season after season. Winner of the 2023 National Garden Bureau Green Thumb Award. *THIS SELF WATERING INSERT ONLY WORKS WITH FLEX RIDGE (Product ID 44620070) , FLEX FOLD (Product ID 44619826 ) AND FLEX STEP PLANTER POTS.