FIG. 1 is a top perspective view of a warmer showing the claimed design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a rear view thereof; and,
FIG. 8 is a front view thereof.
The dashed broken lines in the figures show portions of the warmer that form no part of the claimed design.
The dot-dash broken lines in the figures show boundaries that form no part of the claimed design.
The stippling in the figures shows adhesive.