A template and a pen for indication of front vowel and back vowel

摘要

This symbol shows the phrase invented before and after installing the installation before and after symbol by the English words seemingly therefore template 100 and template 100 of square hole 131 including a piece of forming, pen core is configured so as to be drawn through a filament of naejineun thick lines 210, it is to have the feature that can be easily shown after setting flag that thick core including pen 220, which forms a pen 200,.