Ergonomic Optimized Seated Calf Raise Machine: Combines user-friendly ergonomic design and advanced biomechanical engineering to optimize calf workouts and help build stronger, more powerful calves. Saver, More Focused Workout: Unique foot platform design eliminates stress compression on the ball of the foot while providing optimal range of motion for deep muscle fiber penetration. 5 Handle Heights & 4 Lengths: Adjustable thigh pads help to fit your body size, while the padded seat adds comfort and ergonomic well being to your workout on this calf machine.