Device correction adjustable position of asid, for useful writers, which is intended for mounting on pens, pens and any type of instrument writer, and is defined for this formed by two dockable bodies, both equipped with step axial through which is posing the instrument, counting the effect one of the bodies with a higher base convex for comfortable support of fingers and neck sectioned diametrically, by way of chuck, fitted with outside thread on which has the second body constituting a lock nut, whose passage is tapered axial thread tightening to produce the neck sectors first instrument on the surface, which can be controlled device position repeated throughout the instrument. (Machine-translation by Google Translate, not legally binding)
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