[Premium Pure Copper Conductor]: Crafted with high-purity bare copper conductors, our NM-B wire ensures excellent electrical conductivity and minimizes power loss. It is manufactured to meet the stringent requirements of the National Electrical Code (NEC) for Type NM-B cable, ensuring reliability and performance for your residential wiring projects. [Durable PVC & Nylon Jacket for Superior Protection]: Features a flame-retardant PVC inner insulation and a tough, abrasion-resistant nylon outer jacket. This robust dual-layer construction protects against physical damage, moisture, and chemicals, offering enhanced safety and longevity for in-wall, conduit, or other approved dry location installations. [Stable Performance with Paper-Wrapped Grounding Wire]: The included ground wire is neatly wrapped in kraft paper for easy identification and separation. Rated for 600V and a wide temperature range from -10°C to 90°C (14°F to 194°F), this cable delivers stable and safe power delivery in