The maximum width of the crocodile clips opening is 10mm.
Lead length: 3.3 ft.
Voltage: 1500V.
Current: 15A; The alligator clip is firmly fixed to the wiremade of high-quality metal material which have good electrical conductivity. Pure copper conductor material is sensitive that gives you precise testing.; Perfect for all electrical testing, electronic applications like automotive accessories and testing circuits on your vintage cars, trucks and motorcycle. Perfect for DIY electrical testing, classroom experiment, troubleshooting in the electrical industry, laboratory, home, and so on.;
Copper: Both ends of the test leads are nice pure copper alligator clips with insulation cover.; you will get 10PCS Alligator Clips Electrical Test Leads Set