The ornamental design for a handle, as shown and described.
FIG. 1 is a top view of a handle shown in environmental use in accordance with the present invention;
FIG. 2 is a left side view thereof;
FIG. 3 is a left perspective view thereof;
FIG. 4 is a top view of the handle shown in a second environmental use;
FIG. 5 is a bottom view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a rear top perspective view thereof; and,
FIG. 8 is a front view thereof.
The broken lines shown represent environmental subject matter and portions of the handle that form no part of the claimed design. The broken lines that depict lettering and line designs within the bounds of the continuous handle are for illustrative purposes only. None of the broken lines form a part of the claimed design.