Tunturi R30 Rowing Machine Rowing machine with manually adjustable magnetic brake and 2-rail construction Offers long, smooth rowing motion that efficiently trains all major muscle groups Battery-operated monochrome LCD display tracks time, distance, and calories burned 3 total programs, including recovery HR program; max capacity of 300 pounds No power supply required; measures 19 x 21 x 81 inches (W x H x D); 15-year frame warranty