0.035", NR211, 10 LB, Spool Flux-Cored Mid Steel Wire, For Mig Wire Feed Welders, Self Shielded & Flux-Cored With No Need For External Gas Or Flux, Produces Quality Welds In Moderate Wind Conditions With No Tenting, Low Splatter & Excellent Weld & Bead Appearance, Fast Freezing Characteristics Accommodate Poor Fit Up Good Slag Removal.