A hydraulic rowing machine. Bought it this April and have not used it much since then. It is in a good condition! Description from the amazon seller: - 12 levels of adjustable resistance - Comfortable, smooth running seat - Pivoting foot plates for added comfort - Adjustable foot straps - Electronic monitor displays time, count, total count, calories burned, scan p.s. J******* I know you have been contacting me but my reply doesn't seem to reach you. Please leave a phone number in your message so that I can contact you!