Concept2 is a manufacturer of rowing equipment based in USA. Its indoor rowing machine is one that is considered as a standard training machine for world-class rowers. Concept 2 is one among the leaders in their field. They manufacture oars as well but their most popular product is their popular concept 2 rowing machine. It makes the most out of the indoor environment. This equipment is also a way for a complete workout. It gives the non-rowers an idea of what a rower is put through as well. This machine makes the rower use the exact same physical movements that they have to make while rowing in water.