Product details:

Bare copper residential grounding wire for electrical systems before entering home. Solid and stranded (classes AA and A) bare copper are suitable for overhead transmission and distribution applications. "Southwire's bare copper wire and cable meets or exceeds the following ASTM specifications: B-1. B-787 and B-8". For indoor and outdoor use. Made in USA.Bare copper residential grounding wire for electrical systems before entering home
Solid copper construction, soft-drawn temper
Suitable for uninsulated hook-up, jumpers and grounds in electrical construction
Measures 50 ft. long