The Original MakeUp Eraser is a premium, patented, polyester cloth made up of millions of tiny hair-like fibers that work together to create a "suction" for all dirt, makeup, & oil in your pores. Double-sided to erase makeup with the short fibers side & exfoliate the skin with the long fiber side (side with tag). Reusable, machine washable, & lasts 3 to 5 years.