The Size Toolbar can be used to set all selected objects to a uniform height or width.
Shrink Width – re-sizes all selected objects to the width of the shortest object.
Grow Width – re-sizes all selected objects to the width of the widest object.
Shrink Height – re-sizes all selected objects to the height of the shortest object.
Grow Height – re-sizes all selected objects to the height of the tallest object.