Product Function Description: Premium quality mild steel MIG welding wire ER70S-6. AWS Classification: ER70S-6. Wire diameter 0.035" (0.9mm). 11-lb weight of welding wire. 8-in spool, 2-in center hole. Typical Element Content (wt%) in Product: C=0.08; Mn=1.89; Si=0.83; S=0.019; P=0.021; Cu=0.24; Fe=balance Packaged in moisture-resistant plastic film. This product has undergone rigorous quality testing. Durable and easy to install and replace. The most cost-effective and best after-sales service. Quality assurance that gives you peace of mind. Package Includes: 3Pack ER70S-6 .035" (0.9mm) Mild Steel MIG Welding Wire .