The ornamental design for a boxlevel, as shown and described.
FIG. 1 is a perspective view of the box level;
FIG. 2 is a front elevation of the box level of FIG. 1;
FIG. 3 is a rear elevation of the box level of FIG. 1;
FIG. 4 is a right-side elevation of the box level of FIG. 1;
FIG. 5 is a left-side elevation of the box level of FIG. 1;
FIG. 6 is a top view of the box level of FIG. 1;
FIG. 7 is a bottom view of the box level of FIG. 1;
FIG. 8 is a fragmentary perspective view showing a central-vial region of the box level of FIG. 1;
FIG. 9 is an enlarged fragmentary front elevation of the central-vial region of the box level of FIG. 1, an enlarged rear elevation of the central-vial region is a mirror image thereof;
FIG. 10 is an enlarged fragmentary top elevation of a central-vial region of the box level of FIG. 1; and
FIG. 11 is a fragmentary perspective view showing an end-cap region of the box level of FIG. 1; and,
FIG. 12 is a fragmentary perspective view showing an hand-hole region of the box level of FIG. 1.