Meet the Star Uno Core15: a core strengthening machine that lets you work your abs from all angles in the plank and seated positions. The Core15 has 220lbs max weight capacity. By doing workouts on it, you will be able to engage your glutes, thighs, calves, shoulders, arms, abs, and other muscles.
The Core15 moves in circular rotation to work your muscles. You can find out more about it here.