Kettler Kadett Rowing Machine High resolution LCD digital display is easy to read and provides the following workout data: Time, Distance, Energy Consumed, Strokes, Pulse Rate and Frequency Two industrial strength hydraulic pistons provide resistance with adjustment knobs to vary the resistance level; Includes an infrared earlobe clip sensor measures pulse rate electronically Resistance levels are changed by using adjustment knobs with settings from 1 to 12 providing a wide and challenging range of resistance Biomechanically correct footplates offer a natural pivoting action providing a full longitudinal rowing motion; Frame is made of high carbon steel and powder coated and has a lifetime warranty against breakage Thick padding on seat provides maximum comfort and combines with sealed ball bearings to yield exceptionally smooth performance along the chrome plated steel rails