Meet the Vasa Swim Ergometer: a cool machine that helps you practice swimming at home. It lets you work on your technique, power, and stamina. The machine measures your time, distance, pace, stroke rate, and left / right arm power. You can try freestyle, butterfly, breaststroke, and backstroke strokes.
This machine provides you with a realistic swimming experience. It is great for rehabilitation and injury prevention. The above video shows what you get.