all is 12 but the nice onsie is a 6-12 months im sorry i should have added that on there. but they fit like 6-12moths. my daughter could wear them at 8 months until she was 12-13 months
the two sleep outfits,sun dress,1 t shirt,the five tanks,the 1-footie,shorts,and pants are all 12 months the nice onsie says 6 -12 months. I was told to list it as six to 12 month to be safe so that no one would get mad. it all fit my girl starting around eight months to 12.