The secret of Unicharm 1/3 Silcot Cotton Puff is in the surface material! The super-fine long-fibre structure removes micro-impurities! The first of its kind in Japan! The puff is covered with a double-layer structure sheet, with super-fine long fibres (<10µm) for the outer layer that touches the skin, and coarse cellulose fibres for the inner layer. These double-layered wipes help remove micro-impurities in skin with its super-fine fibres which are only 1/3 the size of conventional fibres. The ultra-silky texture also ensures the wipes will not hurt your skin. 32 sheets per package.