These laundry balls are used to prevent clothes from tangling and to reduce pilling during washing. Set of 2. Purchased on Amazon about 2 years ago for 1690 yen. They seem to be out of stock now, but I'm including the information in the photos. Used once. There are no noticeable scratches or stains, but please be aware of minor scuffs from use. *I didn't really notice any effect on pilling in my washing environment. I think the effectiveness of this product varies depending on the type of clothing and washing machine, so please purchase only if you understand this. Lightly cleaned. Thank you for your understanding of used items.