Construction and materials Durable construction: copper conductors encased in PVC insulation for long-lasting, reliable performance during electrical work. Safe handling: PVC insulation reduces the risk of accidental contact while testing or connecting circuits. Key performance benefits Accurate measurements: high-conductivity copper ensures consistent signal transfer for reliable readings. Secure connections: serrated (toothed) jaws clamp tightly to wires and terminals to minimize slipping and intermittent contact. Versatile fit: clip opening of approximately 10 mm accommodates a wide range of terminals and wire sizes. Why you need this product Makes testing and troubleshooting faster by forming stable, low-resistance connections that reduce measurement errors. Improves safety and confidence when working on electronics or vehicle circuits thanks to insulated leads and firm grips. Built to withstand routine use in workshops, garages, and home repair tasks. Compatibility and applications Suitable for household electronics and automotive circuits; fits many common terminals and component leads. Use scenarios: 1. Diagnosing car electrical faults — clip onto battery posts, sensor terminals, or fuse box connections for stable test leads while you trace voltage or continuity. 2. Repairing home appliances or consumer electronics — secure clips to component leads or PCB test points for hands-free measurement during troubleshooting. 3. DIY electronic projects and prototyping — hold components and wires firmly while you take readings or make temporary connections. Practical details Material: copper conductors with PVC insulation. Clip opening: approximately 10 mm. Jaw design: serrated teeth for firm grip on wires and terminal posts. These test leads combine practical safety features, dependable conductivity, and a secure grip to streamline electrical testing tasks in both household and automotive settings.