Description These Lincoln Electric Wire Feed Contact Tips are replacement tips for solid and flux-cored welding wire. These Tweco/Binzel style copper contact tips may be used on all Century/Solar welders and most Lincoln Electric and Marquette welders.Promote good electrical conductivity for positive arc characteristicsLonger lifeCopper construction WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov