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 dash-dash broken lines in the drawings depict portions of the handle for electric toothbrush that form no part of the claimed design. The dot-dash broken lines depict the boundary of the enlarged portion and form no part of the claimed design.