Cerrowire 147-1802CR-2 100-Feet 10/2 NM-B Solid with Ground Wire, Orange Uncoated copper conductors, ASTM B-3; 10-AWG Insulation 90 PVC compound, color coded, nylon jacket Two conductors are laid parallel without/with ground wire and paper separator Two conductors are twisted with cable fillers without/with ground wire to form round core Smooth 30 mil PVC jacket overall