17" x 24", Medium, Heated Pet Mat, Heats To Pet's Body Temperature To Keep Them Warm During The Fall & Winter Months, Perfect For Dogs & Cats, Thermostatically Controlled Heater Works Automatically To Maintain A Temperature Range Of 100 - 105 Degrees Fahrenheit, Red Indicator Light Shows When Unit Is Heating, Anti-Chew Cord Protector To Deter Chewing, ABS Plastic Material Is Durable & Easy To Clean, Comes With Free Fleece Cover.