WaterRower Oxbridge Rowing Machine in Cherry with S4 Monitor Handcrafted rowing machine with "water flywheel" that replicates actual rowing feel Flywheel sits in enclosed water tank to provide smooth, quiet, self-regulated resistance Series 4 performance monitor tracks workout intensity, stroke rate, heart rate, and more Solid cherry wood construction absorbs sound and vibration; hand finished in Danish oil Stores upright; measures 84 x 21 x 22 inches (W x H x D) and weighs 117 pounds