sturdy Materials: Crafted from premium insulation materials and resistant metal for excellent conductivity and long time durability in various environments Without Destructive Testing Design: Features quick puncture steel needle for testing wires without damage, ensuring circuit integrity and measurements in delicate electrical work Ergonomic & Efficient operations: Designed with a comfortable handle and secure hook grip for easy, quick operations, significantly improving workflow efficiency 4mm Banana Plug Compatibility: Equipped with standard 4mm banana plugs that fit most multimeters and testing equipment, enabling quick connection and versatile usage Wide Application Scenarios: Ideal for automotive repairs, electrical testing, and home circuit inspections, serving as a practical tool for professional and craft enthusiasts, Manufacturer: Xjdzineq