I opened it and washed it, but I never used it and stored it in a dark place. If you purchase it with other items, I will sell it for 100 yen. Size: Approximately 16.8cm in length (approximately 15cm from the bottom of the string) x approximately 22.8cm in width Bottom gusset: Approximately 8.6cm x approximately 14.7cm Please refrain from purchasing if you are looking for something in new condition or if you are concerned about minor details, as this item has been stored at home for a long time. I will fold it in half for shipping.