This is a set of two kids' swim caps. Both are approximately 22 cm when laid flat and are labeled size M. I didn't notice any particular stains or dirt. They were used for a short period of time for swimming. Since there are two, they can be used as spares. I will be blacking out the names on the tags. They will be sent via Yu-packet Post Mini. Green and blue swim caps, size M. - Color: Green, Blue - Size: M Thank you for looking.