Vintage Kilometer Miles Tankfix gauge

Vintage black Kilometer KM Miles Tankfix gauge in new old stock (nos) condition. The miles counter has only 4 digits an the size is 4 x 3,7 cm. You can mount it, on a metal dashboard, with the rear magnet. Alternatively, the thin metal plate with sticker comes between the plastic dash and the magnet of the miles counter. A made in Germany must have for classic cars without fuel gauge or with imprecise gas gauge. After the tank is filled with fuel, you just roll the wheels on the counter to match with the speedometer mileage. Great!