Replacement test lead set for the Fluke 1550B MegaohmMeter. 3 test leads (red, black, green) connected to low-leakage probes. 3 alligator clips (red, black, green). Maximum jaw opening: 26mm (1"). Length (lead only): 2.6m (8.6'). Cat II 1000 V, Cat III 600 V, 5kV DC max (probes). Cat II 1000 V, Cat III 600 V, 20 amps (alligator clips).