This MULTI-IONIZER is designed for washing machines and is an item to improve the efficiency of your laundry. In particular, it can be expected to enhance the cleaning effect of your clothes. 【How to Use】 You can start using it simply by attaching it to your washing machine. You can maintain its effectiveness by performing regular maintenance. - Product Name: MULTI-IONIZER for Washing Machines - Country of Manufacture: Korea - Purpose: For washing machines Thank you for viewing. I purchased this a few months ago, but it couldn't be installed on my washing machine, so I am putting it up for sale. I opened it for installation, but it is unused. Thank you.