Boston THHN/THWN stranded copper wire delivers reliable performance for residential and commercial electrical installations. This 150-meter roll features 10 AWG (5.5mm²) gauge with durable black insulation rated for wet and dry locations. The stranded construction provides flexibility for easier routing through conduit and tight spaces, while maintaining excellent conductivity. Ideal for branch circuits, sub-panels, and general wiring applications where code-compliant, heat-resistant wire is required. Each roll is factory-wound for convenient handling and storage.