What is claimed is the ornamental design for a handle, as shown and described.
FIG. 1 depicts a side view of a handle, showing the novel design, as utilized with a suitcase;
FIG. 2 depicts a side view of a handle, showing the novel design; and,
FIG. 3 depicts a top view of a handle, showing the novel design.
The dashed broken lines shown in the Figures do not represent a part of the claimed design. The design may be applicable to all types of articles of luggage, including suitcases, bags, backpacks, and the like.