High Strength Copper-Clad Steel Tracer Wire is a strong yet flexible conductor. Most commonly specified for open cut/trenching/plowing applications when the ground above the utilities can be disturbed, and there are no buildings, roadways, or other obstructions in the way. Insulated with durable HDPE (30 or 45 mil) and available in APWA colors and 500/1000/2500 ft spools.