-CL2 rated -Certified for in-wall installation -Gauge: 12AWG -Length: 500 ft -Cable Type: Loudspeaker cable -Conduit: High Purity, Oxygen-free Copper -Strand count: 65 wires -Strand size: 0.254mm +/- 0.008 -Outer Diameter: 7.8mm -Twist type: Multi-twist, rope lay -Outer Jacket Color: White -Polarity markers: Yes, inner conduits are covered by red and black jacket. -Rip cord: Nylon thread -Conductor resistance (20°C) Max: 5.43?/KM -Insulation resistance (20°C) Min: 0.75?/KM -Spark Test: 3.0KV/ Sec NOBREAKING -Cold bend test: - 10±1°C/4HR NO CRACKING -Heat shock test: 121±1°C/1HR NO CRACKING -In easy-pull box We carry 36 kinds of speaker wire cables for home, automobile, in-wall, commercial uses. Wholesale available. Pickup Location: "Cable Link" Tel: 613-680-6188