Banana plug test leads are made of copper material, so they are soft, flexible, and nice to work with. Robust banana plugs and insulation significantly improve the durability and flexibility of the leads. Every electronics engineer should have these leads. The alligator clip end can be perfectly connected to 4mm banana plugs. 5 colors make it easy to distinguish them during testing. Maximum opening: 15mm. Current voltage: CATII 300Vac/15A. Wire piercing probes can be easily connected to 4mm banana plug test leads. Perfect for wire piercing. No need to strip the wires and no damage to the wires. Textured non-slip design increases your comfort. High reliability and long service life. Probe length: 20mm. Voltage: 30V. Banana plug probe kit not only for automotive diagnostics, testing, and repair, but also in physics laboratories, schools, homes, and industries. It is one of the indispensable tools for engineers. Package includes: 5 x banana to banana plug test leads, 5 x alligator clips, 5 x insulated wire piercing probes, 1 x white transparent storage box.