6 Gauge Set, Speedo, Tacho, Fuel Level Gauge, Oil Pressure, Volt, Water Temp, Black, For Car Boat Motorcycle. Fixed size: 2 big gauge 85mm+ 4 small gauge 55m. 2 big gauge 85mm+ 4 small gauge 55m. Application: motorcycle, truck, boat (the driving distance cannot be reset, just like on a car, and the mileage will continue to increase).