You can get a ¥200 discount if you don't need the box. This is a very rare, not-for-sale item. I obtained it several years ago through a point exchange at a convenience store in Hong Kong. The material is mesh, so it's thin and light, making it especially convenient for outdoor activities or at the pool in summer. Please refer to the photos for more details. I have never used it and have stored it in a drawer. The outer box is crushed, but the contents are in good condition. If you are interested, please consider it.