The ornamental design for a handle, as shown and described.
In a preferred embodiment, the nature of this product is as a plumbing handle primarily useful for controlling a rotatable valve stem.
FIG. 1 is a left, top, front perspective view of a handle embodying my new design;
FIG. 2 is a front elevational view thereof, the right side, left side, and rear elevational views being identical to the front elevational view shown; and,
FIG. 3 is a top plan view thereof.
The broken line representation of a mounting environment in FIG. 1 is for the purpose of illustration only, and forms no part of the claimed design.