Product review (2 stars): Not clear, opaque with white tint
They are not clear.  They are opaque with a white tint.  I wanted a clear gap cover so it wouldn't look bulky or tacky on my grandmother's black stove and dark green granite counter tops with black speckles.  I returned and got the black.  I like that the gap cover keeps food from falling down crevices and sticking to the sides of the counter and stove.  I think it would help keep crumbs and food from attracting bugs.