Please check the official website for information on effects and efficacy. ReFa/Refa Ultra Fine Bubble Laundry ¥11,800 (tax included) I purchased this last summer from Dinos and left it untouched, but recently I tried to install it. However, My washing machine has a different device (Kärcher parts) attached, so I couldn't install it. I opened the box and read the instruction manual, but it is a new, unused item that has been opened. This item has been stored in a private home, so I would appreciate it if those who understand the circumstances would consider purchasing it. * If you wish to purchase, please * * read the profile * * before purchasing. *