Movable tow clips come in two main categories; the former of which has multiple variants.
Category 1:
4559 likely has one version pre2000 and another 2005-2012 including the red color in the latter.
22307 has only one variant.
2092 has probably only one variant.
31300a and 31300b may have two different variants, totaling 4 different combinations when tow pin variants are included.
31507 has probably only one variant.
4580a and 4580b are likely to have one version pre2000 and another 2005-2012 including the red color in the latter.
Category 2:
28759 Yellow rounded movable clip/hook
Category 1:
4559 likely has one version pre2000 and another 2005-2012 including the red color in the latter.
22307 has only one variant.
2092 has probably only one variant.
31300a and 31300b may have two different variants, totaling 4 different combinations when tow pin variants are included.
31507 has probably only one variant.
4580a and 4580b are likely to have one version pre2000 and another 2005-2012 including the red color in the latter.
Category 2:
28759 Yellow rounded movable clip/hook