The BODYCRAFT VR400 Pro Air and Magnetic resistance rower represents over a decade of research and development and incorporates all the latest technology and long standing consumer requests resulting in one of the finest rowing simulators ever created. Ultra smooth industrial grade bearings housed inside the friction free rollers combined with the ergonomically designed contoured seat and precision extruded aluminum track provide even the most seasoned professional rowers one of the best "out of water" rowing experiences available.