The DeLonghi DLSC551 SoftBalls are designed to reduce water hardness and prevent limescale buildup in your coffee machine. This patented, chemical-free system works without altering the sensory properties of the water, ensuring your coffee tastes exactly as it should. Each package contains two sachets, which you simply place directly into the water tank. Since one sachet provides protection for three months, the set offers a total of six months of maintenance. These spheres are compatible with DeLonghi ESAM and ECAM series, as well as various bean-to-cup, capsule, and espresso machines, making them a practical choice for keeping your equipment running smoothly.