Full Technical Description: Butt Type; Annealed Tin Plated Electrolytic Copper Material; 1.13 Inch; 1.13 Length in Inch; UL Approval; 4 AWG (Copper) Conductor Size; Non Insulated Insulation Type; 0.3 Inch Barrel Inner Diameter; Penn-Crimps. Brand; Length in Inch - Uom in; B Model