123401-050 QuickCable 1/0 Gauge 350 Amp Contact (50 Pack) - Use a crimp tool for solid dependable crimps. Solid copper contact. Excellent for general commercial and industrial uses. Final assemblies meet UL and CSA specifications, when all components are made and crimped with a UL listed tool., Use a crimp tool for solid dependable crimps,Solid copper contact,Excellent for general commercial and industrial applications,Final assemblies meet UL and CSA specifications, when all components are made and crimped with a UL listed tool