Set of 4 I received these as hand-me-downs, but we didn't use them. There's not much pilling, and I don't see any noticeable stains. It's a shame to throw them away, so I'm offering them to someone who can use them, or for a child. Packaging will be waterproofed with plastic and put in an envelope (sent via Nekopos). I'm also selling newborn underwear and baby clothes, and I welcome bulk purchases. If you have no questions, you can buy immediately. Thank you.