Quantity: 1 pair (1 x positive, 1 x negative) color: red and black; Material: brass; Product dimensions: 5.5 x 3.5 x 2.5cm; Article weight: 150g Voltage: 12V or 24V, screw thread: M8 These are universal batteries adapted to batteries whose diameter of the positive head pole is 19mm, that of the pole Negative is 17mm. Designed for upper post batteries and side post batteries with standard post adapters.