Heavy Duty Soft Silicone Test Lead Set: It is safe to test CAT III 1000V &CAT IV 600V rated current 10A current, perfectly fits all kinds of multimeters like clamp meters, digital multimeters, table meters Package Included: Two 42 inch Soft Silicone Lead Extensions with 4mm Silicone Banana Plug Tip, Two Plunger Mini-Hooks with 42-inch cable, Two 4 inch Heavy Duty Test Probe Handles with 4mm Banana Plug Tip, Two Insulator alligator clip with removable insulators. Banana plug test leads -Shrouded 4mm banana plugs-both ends test lead,Heavy Duty Test Probe Handles with 0.16 (4mm) Banana Plug Tip. Material: This test leads kit is made of Soft Silicone double insulated which is durable, non-toxic, and environmentally friendly. We use high-quality materials to ensure that the test leads are durable, flexible, and resistant to freezing and heat. Wire: Copper wires and nylon yarn give the test leads kit excellent Tensile strength and bending resistance, low resistance, electrical conductivity.