Full Technical Description: Seamless Tin Plated Copper Material; Purple Color; 2-9/16 Inch Overall Length; 1 Inch Barrel Length; Copper Conductor Material; UL Approval; 35 kV Voltage Rating; 4/0 AWG Stranded Conductor Size; 1/2 Inch Stud Size; T-15 Die Index; 1-1/8 Inch L X 1 Inch W X 9/64 Inch Thk Pad Size; 1 Pad Hole(S); Belled Barrel Type; PENN-CRIMPS[R] Brand; With Inspection Window; BLU Model