The OlyLife THz Tera-P90 is a white device specifically designed for foot massage. - Model Name: THz Tera-P90 - Brand Name: OlyLife I purchased this about 2-3 months ago from someone who had used it for a month and was selling one of two they owned, purchased last September. It seems to treat with terahertz waves and pulsed electromagnetic waves, and I do believe it has an effect. I've used it a few times at home, and it works without any problems. There are a few issues. There's a thin scratch on the surface where you place your right foot, which I noticed at some point. It's not visible depending on the angle... Images of the scratches are included (images 8-12) Also, the ground wire has been chewed on (images 13-15). Both were done recently by a 1-year-old dog I'm currently looking after, so I'm offering it at a reduced price. Please check the images carefully before purchasing. Apparently, the ground wire doesn't carry electricity. You should be fine if you wrap it with rubber tape or some other tape. Personally, I think a medical bandage would be best, as they are white. If you'd like, I can apply a bandage or yellow rubber tape before sending it. The plug is not round, and the ground wire is on the side, so it can be used directly in Japanese outlets. I will ship it in its original box and the cardboard box it came in. It's listed as having some scratches, but the scratches on the surface where you place your right foot are not very visible depending on the angle. I'm a person who reacts very strongly to it, and even at the weakest setting (level 1), I get so sleepy afterward that I can't find time to use it at night, so I've decided to sell it. Thank you for looking.