... some types with steam guidance core, far-infared anion chiptype:ultra-thin, extra length, wings, no wings , daytime use,overtime use.Packing" ... order quantities: one container of 20Feet. Features of sanitary pad,panty liner, pantiliner: Far-infared system features: ... 1)far infared sanitary pad can improve of the human metabolism2)microcirculation improvement3 ...