Thank you for viewing. My daughter used this for about three years, from around the second grade to the beginning of the fifth grade. I purchased this after being recommended by Ogura Megane Enfant when I had children's glasses made, to prevent them from falling off. I am selling it because she has outgrown it. She only wore glasses when studying or watching TV. There are no major stains, but there is some discoloration. Please purchase this if you fully understand that this is a used children's item.