Designed for Adult, The Single Fit Rider will help to strengthen and tone legs by working the quadriceps, hamstrings, gluteus, and calves. It also offers a great cardio workout to individuals. Cardio exercise releases endorphins, which result in the elevation of one’s mood and the reduction of stress. Cardio exercise is also a great way to burn calories and get rid of unwanted fat. The Single Fit Rider is made from commercial grade material, so it is durable, making it perfect for use at outdoor parks. It is meant to be used by those individuals who are 13 years of age and up.