Thank you for viewing. This is a pet kotatsu I bought at 3COINS. I assembled it once, but my pet didn't use it, so I'm selling it. I cannot provide any warranty for initial defects. It is made for pets, so there may be some slight wobbling. It does not come with a heater. It was a little small for my cat, who is almost 4 kilograms. I think it's a good size for Chihuahuas or kittens. Please consider this before purchasing. *As you can see in the photo, there are bite marks on the instruction manual from my cat. Please consider this if you understand. *There are no scratches on the main body itself.