Features and Benefits: One pair (red black) of large alligator clips with nickel plated steel jaws Multi-purpose tooth pattern grips anything from fine gauge wire to a 20mm bolt Recommended for use with TL222 and TL224 test leads CAT IV 600 V; CAT III 1000 V 10 A rating One year warranty Multi-Purpose Tooth Pattern Grips Anything From Fine Gauge Wire to Bolts.One pair (red black) of large alligator clips with nickel-plated steel jaws. 1000V Category 3. 600V Category 4. Amps: 10. Length - 20mm. Recommended for Use With TL224 Test Leads.