Used less than 10 times after purchasing new. I haven't used the two inner containers much. There are fine scratches on the picture on the lid, but there are no problems with opening and closing, and there is no noticeable dirt overall. Mikihouse Usako Lunch Box 360ml Microwave safe with the lid removed. No price reduction, instant purchase OK. No pets, no smokers. Please read my profile. Feel free to ask any questions. Kindergarten, nursery school, field trip, preparation for enrollment.