K&H Pet Products Heated Pet Bed Warmer Waterproof Pet Heating Pad for Cat Beds and Dog Beds, Tan Small NEW PERFECT TEMPERATURE: When placed inside your pet's bed, this low wattage thermostatically controlled pet warmer automatically adjusts to the optimal temperatures for pets; unlike human warmers that can harm pets USAGE: Indoor pet heating pad provides extra warmth for your pet in their favorite pet bed, simply insert the warmer into their bed to create their very own heated cat bed or heated dog bed AUTOMATIC EFFICIENCY: Heated pet warmer is thermostatically controlled to automatically warm to your pet's normal body temperature ONLY when your pet is in the bed; remains just above ambient air temperature when not in use SIZE: The small Pet Bed Warmer measures 8.5" x 9" and uses only 4 watts of power INDOOR: Recommended for year-round indoor use; plugs in to any 110/120V household outlet