Blender 2.7 How to set size of the xyz (world/norm..) arrows when editing objects

Not sure if this had todo with me reszing object, but now the positioning arrows from the objects (eg world /normal /view/…) ahave becomme huge, how can i set them back to their normal size ?

Are you talking about the widget manipulator, or some other menu arrows?
The 3d widget is adjusted in Preferences>Interface.

Other than that, not sure what you mean.