1. An electronic computer: Time, Count, Strides/min, Calories 2. Supports Neck, Head, and Upper Body. 3. Elbow support. AB ROLLER ... /2340 PCS Product Description: The improved design gives you a complete, upper-body workout!First, it tones your midsection ... the exercise to produce greater stretching and workload. This unique design and functionality is perfect or use at home, in the gym or at work, ...