Features: Pet Self Heating Pad : Our self heating dog bed special use for your pet dog or cats, no need of electric, the thermal mats nestled against insulating poly-fiber batting core, working with your pet natural body heat to create warmer sleep surfaces, give your pet comfortable rest place, the multi-layer pad provide warm bed in winter & autumn cold day, perfect for pet dog cats as gift. Selected Material: The pet dog bed pad use selected-quality polyester material, warm and skin friendly, anti-skid bottom ensure safety for pet sleeping, soft with better performances. Unique Heat Reflecting Design: Our dog self heating mats use unique heat reflecting designed 5-layer heating structure, can reflect the heat to pet body, ensure the heat long lasting with better heating performances, especially for senior dogs, pregnant dogs. Convenient & Multiple Size: The dog self heating pad applicable to machine washable, the pet cushion mat come with 3 optional size suitable for small, medium, large size pet, cats, dog. Could also be putted to pet beds or simply place on the floor and create warm rest place. Anti-Skid Pad Bottom: The dog bed pad featured with anti-skid bottom can better protect your pet from risky & accidents caused by run or jump when you are not home, not easy to move as well to moisture-proof. Specifications: Material: Polyester Product Dimension: Approx. 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 Size Option: Medium/Large/Extra-Large Package Includes: 1 x Pet Self Heating Pad note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.