The ornamental design for a handle, as shown and described.
FIG. 1 is a perspective view of a handle showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken line showing of the shovel head illustrates the environment of the claimed design and forms no part thereof. The remaining broken lines in the drawings illustrates portions of the handle and form no part of the claimed design. The dot-dot-dash broken lines in the drawings define the bounds of the claim and form no part thereof.