The cable transitions from CDVI provide a secure method for connecting cables between a fixed and a movable point (e.g., door frame and door leaf). The cable is protected by a stainless steel spiral hose. The inner diameter of the spiral hose is 7 mm, making it suitable for the most common cables used in door locking and control systems. The flexible cable transitions are equipped with zinc die-cast caps, which can have their screw holes covered (covers included), a feature typically found only in high-end products.