Oregon, 20″, replacement, 81 drive link c-loop saw chain, fits stihl #’s: 024, 024 super, 026, 028, 028 super, 029, 030, 031, 032, 034, 034 super, 036, trouble free, cuts every type of timber, stands up in any kind of weather & stays together in all cutting conditions, stays sharper longer, easy to resharpen, has lubrication, sharpening, low vibration & low kickback features, chain meets ansi standards, ul classified.