Additional Features The ergonomically shaped water flywheel delivers a purely natural rowing feel Resistance is not manually adjusted but determined only by the force applied: the harder you pull, the greater the resistance for a truly authentic experience The footboards are easily adjustable for an optimal rowing position The ergonomically shaped seat glides silently on eight ball-bearing rollers made of wear-resistant polyurethane to ensure perfect smoothness Designed and manufactured in Germany for superior craftsmanship