Heavy-duty commercial rowing machine with innovative Hydro-Power Drive system * Polycarbonate water tank and internal paddle system mimics feel of actual rowing * Easy-to-read, oversized display panel tracks time, distance, calories, and more * Adjustable, pivoting footrest with "sure-grip" footpad; 550-pound weight capacity * Optional lumbar seat (sold separately); measures 89 x 30 x 26 inches (W x H x D); lifetime frame warranty