FIG. 1 is a perspective view of a retractable knife showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front elevational view of the retractable knife when the blade is received in the handle portion;
FIG. 9 is a rear elevational view of the retractable knife when the blade is received in the handle portion;
FIG. 10 is a left side elevational view of the retractable knife when the blade is received in the handle portion;
FIG. 11 is a right side elevational view of the retractable knife when the blade is received in the handle portion;
FIG. 12 is a top plan view of the retractable knife when the blade is received in the handle portion; and,
FIG. 13 is a bottom plan view of the retractable knife when the blade is received in the handle portion.