Adjustable dumbbell

FIG. 1 is a front, right and bottom perspective view of an adjustable dumbbell, showing my new design;

FIG. 2 is a rear, left and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

Fig, 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front, right and bottom perspective view of the adjustable dumbbell in a detached state;

FIG. 10 is a front, right and bottom perspective view of the dumbbell of the adjustable dumbbell; and,

FIG. 11 is a front, right and bottom perspective view of the base of the adjustable dumbbell.