Four pair, 23 AWG Solid conductors Convenient, 1,000’ easy pull box CMR Rated UL Listed< Mechanical Construction: Conductors 23 AWG Solid Copper Pairs: 4 Insulation: Insulation Grade Polyolefin Diameter: 0.037” (0.93mm) Jacket: FR Polyvinylchloride (PVC) Diameter: 0.212” (5.4mm) Specifications and Testing: ANSI/TIA/EIA-568-B.2 NEC Rating: CMR UL Verified