| 摘要 |
PURPOSE: A roller ski exercise device is provided to enable a user to exercise for a long time and to enjoy an exercise with more fun. CONSTITUTION: A roller ski exercise device comprises a stage(20), a body(10), a front wheel, one or more rear wheels, a brake device(50), and a pair of poles. In the body, the stage is installed on the rear thereof. The front wheel is rotationally installed in the front of the body and the driving direction thereof is changed to the right and left. The rear wheels are freely installed in the rear of the body and have a diameter larger than that of the front wheel. The brake device stops the rotation of the rear wheels. |
