I couldn't find it in stock, so I purchased a new one here for 14,000 yen. I only connected it to the main unit and ran water through it for a few minutes as a test. There may be some scratches or wrinkles from storage, so if you are concerned, I recommend purchasing an unopened item. I thought I might use it next year, but I'm selling it at a low price to declutter. I think it's uncertain whether the manufacturer will re-release it next season, so why not get one early? I'm also selling the main unit, which is almost new. I will offer a discount if you purchase them together. How about it as a spare? Product Name: ICEMAN Water Magnum Model Number: ICM-WM1 *Optional part for ICEMAN water-cooled clothing Please note that it cannot be used alone. - Brand: ICEMAN - Model Name: WATER MAGNUM - Size: Free Size - Features: Water-cooled cooling function