DOP106032ST Bar & Chain Combo. 200SLHD025/72LG072G. 20" 3/8" Pitch .050 Gauge Bar & 20" Chain Loop. Fits Stihl model 029, 030, 031, 021, 034 Super, 034, 036 Pro, 036 QS, 036, 038 Supoer Magnum, 038, 039, 040, 041, 042, 044 Magnum, 044, 045, 046, 046 Magnum, 048, 056, 056 Super, 064, 066, 066 Magnum, E15, E20, E220, MS 200, MS 290, MS 310, MS 360, MS 360 C, MS360 QS, MS 390, MS 440, MS 440 Magnum, MS 460, MS 460 Magnum, MS 650, MS 660, MS 660 Magnum, MS E220Q Chain saws.