IRONMAN X-Class 610 Smart Technology Elliptical Trainer with Bluetooth, 23" Stride, BONUS 122K Heart Rate Chest Belt and Added BONUS Equipment Mat Full 23" stride length provides smooth, natural elliptical motion 32 levels of smooth Magnetic Tension resistance 12 Computer pre-set Workout Programs BONUS feature Includes 122K heart rate chest belt BONUS Ironman Waterproof Equipment Mat included for floor protection and noise reduction when exercising 'Rear Drive' belt system with Double Transmission allows noiseless and uninterrupted workout sessions and reduced elliptical length