The Fleischmann 6928 Switch for Double Arm Semaphore Signal is a model railway accessory designed for controlling double arm semaphore signals in model railway layouts. This analogue control switch operates at 15V DC and is made of green plastic, providing a realistic and detailed addition to any railway scene. With its sleek design and reliable operation, this Fleischmann switch is a must-have for collectors and railway enthusiasts looking to enhance their model railway systems.