From the publisher's website:

Ponyri is a Blood & Steel system game designed by Paul Rohrbaugh and is an extension of the highly successful Blood & Steel folio game on the battle of Kursk.

Ponyri Station is a simulation of the armored clashes between XLI Panzer Corps and the defending Soviet forces near the small town of Ponyri, reflecting the high water mark of the German Kursk campaign.

Expands:

• Blood & Steel

Contents:
1 11"x17" Ponyri game Map
1 5/8" full color, die-cut sheet of counters
1 Rules booklet
1 Game Folio