Insulation sheet. Please understand that there may be some stains. This seems to have been included with products from a potential therapy device manufacturer. It can be used for insulation in potential therapy devices. Asmo Care, IAS, Iasis, 14000 Power Health, Shenpec, Trans Saber, Kenju, Cosmo Doctor, Energytron, Healthtron, insulation sheet for potential therapy devices. For 1000V to 14000 volts. Free shipping only in Honshu. For Kyushu, Hokkaido, and Okinawa, there will be an additional charge of 400 yen, and a dedicated page will be created and relisted, so please comment. If you purchase without seeing this, you will be charged an additional 1000 yen for shipping, so please be aware. Shipping to Okinawa is expensive, so shipping is not possible. Shipping to Hokkaido and remote islands will be an additional 1000 yen. Size: Approximately 1m x 2m, I have only been able to confirm approximately. Thank you. Please purchase this item only if you agree not to complain about anything later. Regarding this listing, we will not give a negative rating under any circumstances, so please only purchase if you can promise not to give a negative rating under any circumstances. To Mercari: This is not a medical device, but a part, so please do not delete it.