Spong by SUAVIPIEL. Double-sided sponge, therefore, provided with a double benefit. On the one hand, the polyester fiber peels and keeps your skin clean and healthy. On the other, it has a soft material, as soft as a baby’s skin, so that you can relax and pamper your body. How to use: Massage yourself beginning with limbs and paying special attention to feet, knees, and elbows. Use the undulated side, with circular movements to tone buttocks, legs, and abdomen.