I don't think they were used very often. All of them are 50-60cm rompers. I'm not certain, but I think I bought them at Birthday. In photo 7 and photo 10, the lace parts seem to be slightly yellowed. The romper in photo 8 is originally yellowish overall, so it's even harder to tell. However, this is just my subjective opinion, so please check the photos before purchasing. I am a private seller, so please forgive any oversights. #used items