With this system, the slat raising, lowering and tilting function is achieved using a rotational magnetic transmission through the glass, thereby guaranteeing the double -glazed unit’s hermetic seal. One set of magnets is inserted in the blind head rail within the cavity and the other applied to the external glass surface. The external magnet, fixed to the internal glass by double-sided high-performance adhesive, allows perfect alignment with the internal magnet. This magnet principle does not compromise the unit seal and guarantees the perfect integrity of the double-glazing unit.