The Original MakeUp Eraser is a premium, patented, polyester cloth. Made up of millions of tiny fibers to work as a "suction" for all dirt, makeup and oil in your pores. Double-sided to erase makeup (short fibers) and exfoliate the skin (long fibers). Antibacterial, machine washable and reusable 3 to 5 years. Ultra-soft, dermatologist approved and great for sensitive skin. IMPORTANT: Machine wash before first use. PRO TIP: Use in sections, wash approx., 1-2 times per week.