Amprobe TL36A Test Leads with Alligator Clips, 1000V Test lead set connects a compatible electrical test meter to a device for testing Set includes two lead wires, two threaded test probe tips, and two alligator clips 2.67" threaded alligator clips have 0.30" jaw opening and teeth that grip the conductor to provide a more secure, hands-free connection than probe tips Meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category III installations up to 1,000V