The Cascade Ultra Runner Plus not only gives you all the exercise benefits of a self-powered curved treadmill, but it also gives you the option to add 6 levels of magnetic resistance to add higher intensity interval training. Walk or run at your own pace then add resistance to burn more calories and add variety to your workout. Upper and lower handlebar positions accommodate all user sizes and facilitate different exercises, including sled conditioning. There are interval programs for high intensity workouts and displays level, time, distance, calories, watts. HR and speed. Built in wireless heart rate receiver. Premium anti-slip molded rubber slats with sealed bearings create an exceptionally quiet and smooth-running surface and reduce friction wear and tear. The 63" x 19" curved running surface with quality sealed bearings for a smooth workout. The rear handle makes it so easy to pick up and move the Ultra Runner Plus. The ultimate training tool, the Cascade Ultra Runner Plus is fully commercial and built to last.