The ring acts against limescale deposits in your toilet and thus reduces the development of bacteria. It extends the lifespan of your equipment and reduces the consumption of cleaning products. No special installation is required. Simply place the magnetic ring in the water tank, then operate your toilet as usual. The limescale in the water then transforms into disc-shaped crystals that can no longer easily deposit on the bowl walls. Continuous action for many years. Made in Europe. Dimensions - Ring diameter: 5 cm Capacity - 1 ring Materials - Anti-limescale magnetic ring (5-year warranty) Vegan, Ecological, Zero waste goal, Cruelty-free