OSHIROI Hypochlorous Acid Generating Toilet Bowl Cleaner Product Model Number: EDST-OSHIROI-1 ■ Reduces the burden of toilet cleaning. ■ Installed in the water storage tank, it provides disinfection and deodorizing effects. I purchased it (5,980 yen) and stored it without using it. It is a new, unused item. Thank you.