First Degree Fitness Horizontal Daytona Challenge AR Water Rower, the First Degree Fitness Daytona Challenge AR Water Rower is the ingenious blend of the unique properties of water and the convenience of an indoor gym. Harnessing the versatility of the natural resistance of water, this rower instantly adapts from a light warm-up to a fierce workout. Thanks to water's natural resistance, the harder you exercise, the tougher it gets. This water rower was developed in collaboration with professional rowers to deliver the feel, sight, and sound of real on-water rowing. Inside, the multiple chamber ribbed internal tank provides a natural catch at the start of the stroke, and delivers the smooth and consistent resistance you'll find on any rowing ergometer. Water is easily adjusted to change the overall resistance profile to perfectly suit every user from amateur to novice.