FIG. 1 is a perspective view of a walk behind rotary trowel guide handle, wherein the dashed lines illustrate the environment and form no part of the claimed design;
FIG. 2 is a top plan view of the guide handle of FIG. 1;
FIG. 3 is a front elevation view of the guide handle of FIG. 1;
FIG. 4 is bottom plan view of the guide handle of FIG. 1;
FIG. 5 is a left side elevation view of the guide handle of FIG. 1, the right side elevation view being a mirror image thereof; and,
FIG. 6 is a rear elevation view of the guide handle of FIG. 1.