Five Star Cable 16 AWG 2C UL Listed CMR Bare Copper Speaker Wire made for home and office sound systems. UL listed CMR rated makes it acceptable for most building and electrical codes. Test Material PVC Before Tensile Strength (Mpa) >=13.8 Aging Elongation (%) >=100 Aging Condition (°Cxhrs) 100x240hr After Tensile Strength (Mpa) >=85% of unaged Aging Elongation (%) >=50% of unaged Stranded Conductor Diameter 1.10 Conductor Diameter (mm)+/-0.008 0.12