【High Quality Material】These banana couplers are made of PVC insulated sheath and the main body is made of brass and nickel plated, which is anti oxidation. 【High Performance】The insulated banana connector is made of high precision technology, with strong product connectivity and good electrical conductivity. 【Easy to Use】Rated voltage 30Vac-60Vdc, maximum current 10A, banana plug head diameter is 4mm, more suitable for electronics, home appliances, computers, etc. 【5Pairs Multiple Colors】Insulated banana plug adapters in 5 colors including red, black, yellow, etc., which are convenient to distinguish between using when connecting, also more convenient to match the original color, good choice for replacement. 【Wide Application】These banana couplers are widely used in inverters, welding machines, charge generators, ships, automobiles, solar cell separation and distribution, power regulators, etc.