Craft Wire Content: 99.9% Pure Copper. Product Parameters: Size: 18 Gauge(Dia 1.0mm) / Weight: 16oz / Length: 200Ft. Product Feature: The High Ductility And Durability, Provide Greater Flexibility And Plasticity During Use. Application: Widely Use In Electroculture Gardening, Jewelry Making, Home Decor, Diy Crafts And So On. Warranty: 1 Year Maintenance Since Purchase Date. 99.9% Solid Bare Copper Wire, 18 Gauge 130Ft,1lb Spool,Supplied by Wonderway