FIG. 1 is a perspective view of a pen cap showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a left end view thereof;
FIG. 4 is a right end view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is an enlarged partial view of FIG. 2, taken along Line 7—7;
FIG. 8 is a sectional view of FIG. 5, taken along Line 8—8;
FIG. 9 is an enlarged sectional view of FIG. 5, taken along Line 9—9; and,
FIG. 10 is an enlarged sectional view of FIG. 8, taken along Line 10—10.
The broken lines showing environment are included for information purposes only and form no part of the claimed design.