Buckle

FIG. 1 is a top plan view of a buckle, showing the new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines in FIG. 2 represent portions of the buckle and form no part of the claimed design. The broken lines in FIG. 3 are for the purpose of illustrating environment and form no part of the claimed design.