Writing instrument
FIG. 1 is a left side elevational view of a writing instrument showing my new design in an exploded condition; 
     FIG. 2 is a rear elevational view, with the cap member in place; 
     FIG. 3 is a front elevational view of FIG. 2; 
     FIG. 4 is a left side elevational view of FIG. 2, the right side being a mirror image thereof; 
     FIG. 5 is a top plan view of FIG. 2; and, 
     FIG. 6 is a bottom plan view of FIG. 2.