Brass ConnectorsVegena 1 pair +/- battery post terminals, battery post terminals is made of brass material, battery electrode terminals are made of brass, which has good electrical conductivity, corrosion resistance and durability for longer service life than traditional alloys. FeaturesThe positive and negative terminal is clearly marked for easy identification. Designed for high current application, can meet your various needs. SizeThe size of the positive and negative terminals are 18mm (0.71 inch) and 16mm (0.63 inch) respectively, which can be used for different Standard battery terminals can be used. Brass binding posts Feature : Battery terminals have strong corrosion resistance and rust resistance, and can be used for a long time in a complex environment. Excellent electrical conductivity to reduce voltage distortion and transmission loss. ApplicationSuitable for all common, standardized 12V and 24V DIN car, truck and motorcycle batteries with round + conical poles.