These are Uniqlo 3/4 length legging pants. They are 80cm. There are two in a set. One has no noticeable stains, but the other has brown stains on both knees. I will sell them to someone looking for spare clothes for daycare or clothes that can get dirty ☺︎ There is a name written on them, so I will cover it up before sending. Please refrain from purchasing if you are sensitive to used items or do not understand their nature.