The Light 04 is the first STIHL guide bar model to feature this new name and innovative design. The new Light 04 features a special construction that means you benefit from improved balance and therefore less fatigue when sawing, because this tool's slim contour means it weighs up to 200 g less than existing guide bars. The result is easier manoeuvrability during cutting, and agile chainsaw work. STIHL bar for MS 261 and MS 271.