At its core are a water tank and durable, multi-bladed impeller designed to give you the most effective workout possible. The water tank provides a more authentic rowing feel and soothing sound. We took that idea a step further and angled our tank at 45-degrees for an increased range of resistance. The heavy-duty dual aluminum covered rails are built to provide a quiet, smooth, and efficient workout while withstanding a lifetime of regular use. The ERG650W includes 15 integrated programs to keep you motivated and on top of your training. And when you’re done, the rower easily stands up and stores away with the help of built-in transportation wheels.