This is a Brand-New in the Original Box Harris 600 Amp Twist/Stinger Style Electrode Holder.    Genuine JW Harris.  Its model no. is 60B.  The stinger also comes with allen key and copper insulator.  These have a list price of $48.00 EACH!!  Each electrode holder is rated for 600 Amps.  This auction is for 1 Holder, but many are available.