Selling because my dog no longer uses it. Functionality confirmed. The house has been cleaned, but there may be some remaining hair and scratches like in photo 3 that are not very noticeable, so please only consider if you are okay with that. This is a raised type of kotatsu made for dogs. The underside of the sheet has fine non-slip material to prevent it from sliding. This type is no longer sold, so it's valuable. Includes the instruction manual and box. The lid of the outer box is torn. It also consumes little power, making it economical. Instant purchase is OK.