Voltage: 1000V ; Current: 20A; Male OD: 4mm/0.16 inch; Female OD: 8.5mm/0.33 inch User-Friendly Test Leads: Multimeter probes lead set made with PVC insulation, the voltage tester pen are durable, flexible and easy to handle when testing equipment Application: Universal 4mm diameter socket, suitable for most multimeter Advantage: Double insulation protection. Selected high quantity materials Package Content: 1 x Red Silicone Test lead with test probe ; 1 x Black Silicone Test lead with test probe ; 1 x Red Alligator Clips ; 1 x Black Alligator Clips