FIG. 1 is a front, top and left side perspective view of a handle for electric toothbrush showing my new design;
FIG. 2 is a rear, bottom and right side perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of the handle for electric toothbrush where the handle for electric toothbrush is in a configuration of use; and,
FIG. 10 is an enlarged view of portion 10 shown in FIG. 9.
The broken lines in the drawings depict portions of the handle for electric toothbrush that form no part of the claimed design. The dash-dot broken lines depict the boundary of the enlarged portion and form no part of the claimed design.