Features: Self Heating Dog Bed: Out self heating dog bed special use for your pet dog or cat, 4 optional size which applicable for small or large size dogs, give them comfortable rest place, the multiple-layer pad provide warm bed in winter cold day, perfect for pet dog as gift. Selected Material: The pet dog bed pad use selected-quality polyester fleece top cover, warm and skin friendly, anti-skid cover bottom ensure safety for dog sleep, soft and warm with better performances. Unique Heat Reflecting Design: Our dog self heating mats use unique heat reflecting design, can reflect the heat to pet body, ensure the heat long lasting with better heating performances, especially for senior dogs, pregnant dogs. Durable Dog Bed Self Warming Pad: The pet bed with wear resistant and convenient to fold, not easy to crease, worry free of your pet biting or chewing for durable using. Anti-Skid Pad Bottom: The dog bed pad featured with anti-skid bottom can better protect your dog from risky & accidents caused by run or jump when you are not home, not easy to move as well to moisture-proof. Specifications: Material: Fabric Style Option: Gray(Small Size)/Gray(Medium Size)/Gray(Large Size)/Gray(Extra-Large Size)/Coffeebrown(Small Size)/Coffeebrown(Medium Size)/Coffeebrown(Large Size)/Coffeebrown(Extra-Large Size)/Dark Blue(Small Size)/Dark Blue(Medium Size)/Dark Blue(Large Size)/Dark Blue(Extra-Large Size) Product Dimension: Approx. Small Size 40 x 50cm/15.75 x 19.68 inch, Medium Size 48 x 70cm/18.89 x 27.56inch, Large Size 58 x 88cm/22.83 x 34.64inch, Extra-Large Size 115 x 72cm/45.27 x 28.34 inch Package Includes: 1 x Pet Self Heating Pad note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.