Originally designed as a training tool for cross country skiers, the Concept2 SkiErg? has been embraced by the fitness community for its ability to work legs, core and arms in a smooth, continuous motion. Great for all athletes at all levels?you don?t have to be a skier to reap the benefits of the SkiErg?s total body exercise. With the same flywheel and Performance Monitor as our RowErgs and the BikeErg, the SkiErg offers a quality workout that will build your strength and endurance.