Thank you for viewing. This is an electric hot water mat for sale. Although it is a new, unused item, I have checked the water flow and operation. The water has been drained, but the inside of the tubes has not been completely dried. Single size: 115 x 195cm A mat that warms by circulating hot water within the pad. Please see the images for details. Highly-rated product on Amazon. I purchased it on November 19th, but I ordered the wrong size. As this is a private sale, there may be oversights. Please check the images carefully and purchase only if you are satisfied. The images may not fully represent the condition of the product, but this is a sale of the item as is. Please refrain from purchasing if you are a perfectionist or looking for an item in perfect condition. This item has been in someone's possession, so we appreciate your understanding. Returns are not accepted to prevent swapping. We kindly request that new users, those with similar profiles, and those with many negative reviews refrain from purchasing. I am a non-smoker and do not have any pets. After simple packaging (if the shipping size is borderline, the item's box may be wrapped), I will ship anonymously. The shipping method may be changed due to shipping costs and available materials. If you purchase multiple items from my listings, I can offer a discount on the reduced shipping costs. If you have any requests regarding delivery dates or times, please let me know in the comment section after purchase, and I will do my best to accommodate them. Thank you for your interest.