The WaterRower Natural Rowing Machine is hand crafted from sustainably sourced solid Ash wood and stained Honey Oak for consistency of color. Each rowing machine has been hand finished with Danish Oil giving a deep lustre and warmth to the wood. It features water flywheel technology which produces a real life simulation of rowing on the water and provides an incredibly smooth and soothing work out. Wood has been chosen due to its marvelous engineering properties, including its ability to absorb sound and vibration, which enhances the WaterRower’s quietness and smoothness of usage. Also includes the S4 performance monitor which displays workout intensity, stroke rate, heart rate, zone bar, duration, distance as well as many preset programs. The WaterRower can be stored conveniently in an upright position.