This is the rowing machine that provides the same fluid motion as sculling because its fan's blades operate against air the same way as an oar operates against water. Unlike hydraulic rowers that provide jerky, inconsistent motion, the fan's blades always meet the same resistance offered by the air for a smooth, consistent range of motion. The harder the pull, the greater the resistance, and the better the workout. The padded seat glides smoothly on rollers and the footholds secure feet with straps, ensuring an efficient, powerful stroke. The built-in monitor displays strokes-per-minute, total strokes, distance, calories burned, time, and speed. It collapses to 56" L x 20" W x 33" H and rolls on sturdy casters into storage. Sturdy steel frame supports users up to 250 lbs. Minor assembly. Monitor requires two AA batteries. 78" L x 19 3/4" W x 31 1/2" H. (60 lbs.)