... cardiovascular disc is designed to slim and tone the thighs, waist, hips and buttocks. Increases stamina and tones the muscles in ... Features: Calorie burned,timer/clock, count, music.This Digital Waist Twister combines the principles of reflexology, exercise and magnetic therapy ... disc is designed to slim and tone the thighs, waist, hips and buttocks. Increases stamina and tones the muscles in ...