Musician's Gear 16-Gauge Speaker Cable Black 25 ft. 2-conductor, oxygen-free copper wire Ultra-low signal resistance gives you a cleaner, more powerful signal Heavy-duty heat-shrunk tubing for for strain relief Heavy-duty, heat-shrunk tubing provides strain relief This Musicians Gear 16-gauge speaker cable is a solid mix of low resistance and 2-conductor, oxygen-free copper wire Heat-shrunk tubing provides strain relief for this light-to-medium-duty cable This Musicians Gear 16-gauge speaker cable is a solid mix of low resistance and 2-conductor, oxygen-free copper wire