Progress, was developed to carry propellant and cargo to the Salyut and Mir space stations and it serve the same purpose for the International Space Station (ISS). Although the Mir and ISS have their own propulsion systems, generally it is the Progress vehicle which perform periodic reboosting maneuvers to maintain the Space Station orbital altitude.

Very high definition model
Highly detailed and very accurate model
Diffuse, Reflection and Bump maps included