Cleqee 4mm Banana Plug Adapters, Nickel-Plated Copper Core, Stackable, Red and Black, Set of 4

---------------------------------------------------------------------- It features an ABS resin shell with excellent insulation and impact resistance. The internal conductive part uses a nickel-plated copper core, which is resistant to oxidation and provides excellent conductivity and durability. It provides a stable connection even when measuring high current and high voltage or supplying power. This versatile design supports three different connection methods to suit your needs: ① Stacking connections by inserting another plug into the side hole, ② Connecting by loosening the screw at the bottom and inserting a 6mm wide U-shaped terminal (Y terminal), and ③ Securely fixing bare wires (stranded or solid wires) by crimping the screw at the bottom. The Cleqee 4mm banana plug adapter features a high-quality ABS resin shell and nickel-plated copper core, providing reliable support for high currents and voltages of 30A/3000V. Its most notable feature is its multi-functional design, offering three connection methods in one: stackable connection using side holes, U-shaped terminal fixing with a bottom screw, and screw crimping for bare wires (stranded and solid wires). No soldering or tools are required; the knurled screw at the bottom is simply tightened by hand for secure fastening, preventing contact problems and accidental disconnection due to vibration. It's widely compatible with various measuring instruments and audio equipment equipped with 4mm banana jacks, such as testers, power supplies, and oscilloscopes, and comes in a set of four (red and black) for easy polarity management. It supports safe and efficient wiring work, from professional applications to DIY projects.