Lifecore R100 Commercial Rowing Machine Commercial-grade, folding rowing machine with 16 levels of magnetic resistance 15 preset programs and 4 heart rate control programs compatible with Polar HRM products Ergonomically designed seat and handles; angled footrests with pivoting heel supports Measures 92 x 19 x 36 inches unfolded; 600-pound weight capacity Warranty: 5 years parts/1 year labor for residential; 2 years parts/1 year labor for light commercial; 1 year parts for full commercial