Full Technical Description: Seamless Tin Plated Copper Material; Purple Color; 4-5/16 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; 2-7/8 Inch L X 1 Inch W X 9/64 Inch Thk Pad Size; 2 Pad Hole(S); 1-3/4 Inch Pad Hole Spacing; Belled Barrel Type; PENN-CRIMPS[R] Brand; With Inspection Window; BLU Model