- Replace core every 6-9 months for best results
- Tells you when to water your plants
- Great for beginners and plant lovers alike
- Made in Japan
This is a set of 2 replacement inserts for Sustee watering sticks. They are easy to replace core refills, just twist off cap - remove used core - insert new core and replace cap. Core displays blue colour when the plant has enough water and fades to white when it is time to water. Does not include Sustee water checker.