Dumbbell

FIG. 1 is a front, top and right side perspective view of the first embodiment of the dumbbell showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a front, top and right side perspective view of the second embodiment of the dumbbell;

FIG. 9 is a left side elevational view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a rear elevational view thereof;

FIG. 14 is a right side elevational view thereof;

FIG. 15 is a front, top and right side perspective view of the third embodiment of the dumbbell;

FIG. 16 is a front, top and right side perspective view of the fourth embodiment of the dumbbell;

FIG. 17 is a front, top and right side perspective view of the fifth embodiment of the dumbbell;

FIG. 18 is a front, top and right side perspective view of the sixth embodiment of the dumbbell; and,

FIG. 19 is a front, top and right side perspective view of the seventh embodiment of the dumbbell.

The broken lines shown within the dot patterns and handle form no part of the claimed design.