Writing instrument cap

FIG. 1 is a rear and left side perspective view of my new design for a writing instrument cap;

FIG. 2 is a front and left side perspective view of the writing instrument cap of FIG. 1 ;

FIG. 3 is a side view of the writing instrument cap of FIG. 1 , the opposite side view being a mirror image thereof;

FIG. 4 is a front view of the writing instrument cap of FIG. 1 ;

FIG. 5 is a rear view of the writing instrument cap of FIG. 1 ;

FIG. 6 is a top plan view of the writing instrument cap of FIG. 1 ; and,

FIG. 7 is a bottom plan view of the writing instrument cap of FIG. 1 .

The dashed lines are for illustrative purposes only and form no part of the claimed design.