These windshields are formed to the exact shape required, but are slightly larger than necessary so they may be trimmed to the exact size.

AThe windshields are filled in a form that requires an exact shape, but they are necessary to have a slightly larger space for the ease of adjustment.

B The shape of the windshields has exact requirements, but for purpose of exact size, they appear slightly larger.

CThese windshields are shaped to a required exact appearance, but in order to be clipped accurately, they are a little bigger than necessary.