The Fieldpiece ADLS2 Deluxe Silicone Test Leads features high copper strands and are silicone insulated. The Fieldpiece ADLS-2 offer basket style strain relief and fit inside the test lead holders on all of Fieldpiece's meters that have built-in holders. The Fieldpiece ADLS/2 are rugged and stand up to high and low temperatures better than traditional vinyl test leads and don't become brittle in extreme cold.