I have gained these mechanical pencils for my education. I thought with Faber-Castell products can not go wrong, have so far not yet let me down. Unfortunately, I realized that this was different ... The 0.35mm pencil set after 2 days its functionality one, unfortunately you can not push out any more mine. Why is that I can not say, because you can not open as far as the pin without damaging it permanently. With the strengths of 0.5 and 0.7, I have no problems. For people draw the lot and 0.35 use often, I can not recommend this set.
