WAIST TWISTER MACHINE EXERCISE: This LPHARWW waist twister machine exercise board acts as a top ab workout machine, waist sculptor, and core stregthen. Strengthen your core, tone abs, and achieve waist-slimming results with consistent twist machine exercise at home. HEAVY-DUTY & HIGH-CAPACITY DESIGN: Built from durable carbon steel and ABS, this ab twister board and twist board for exercise supports up to 264 lbs. Non-slip foot covers and anti-slip grip ensure stability for safe and effective waist twister machine workouts.