The brush coated with fluoride creates a fluoride film on the toilet surface with each use, making it harder for dirt to adhere. The fluoride on the brush gradually diminishes with use. Once the fluoride (white substance) is no longer visible, the effect is gone, but it can still be used as a regular brush. The fluoride effect lasts approximately 3-4 months with cleaning every 2-3 days. Suitable for both ceramic and resin toilets. The brush head bends to follow the contours of the toilet, reaching difficult areas under the rim. It can bend in both directions for dual-sided cleaning.
