NOS Carr Polished Aluminum Hoop step PAIR for 1999 Ford Super Duty and 1998 Durango, p/n: 485.  They are new and have been in storage for a long time, no damage, comes with instruction sheet from CARR.  These may fit later years but it's up to you to decide.  I assume these were possibly purchased in 1999.  They are in pristine condition.  The sealed packet of mounting hardware is also included.