Gasless (self-shielded) 'MIG' Welding Wire in 0.9kg (100mm) mini-spools for small welding jobs and use in spool-guns. Weldclass mini spools are E71T-11 grade which is suitable for multi-pass welding - unlike many other mini-spools on the market that are E71T-GS grade & suitable for single-pass welding only.