HEAVY-DUTY OUTDOOR HEATED DOG PAD: Built for outdoor use with a tough, rigid shell, our outdoor dog heating pad features rigid ABS exterior, 5-1/2 feet steel wrapped cord and removable fleece cover WEATHERPROOF & DURABLE DESIGN: Perfect for dog houses, kennels, garages, barns, and patios — keeps pets warm and comfortable even in freezing temperatures AUTOMATIC SMART TEMPERATURE: The heater’s internal smart thermostat automatically warms the surface of your pet's bed to maximum temperature ONLY when your pet is in the bed; and it warms their bed just above ambient air temperature when not in use SAFETY LISTED: K&H products are safety certified, providing peace of mind with electrical safety standards that go beyond UL requirements; K&H doesn't just use safety-listed parts, we safety certify the entire product, ensuring unparalleled safety DIMENSIONS: Large outdoor electric heated pad measures 28.5 X 22.5 Inches; pad is not flexible, please measure to ensure proper fit during installation COLORADO BRAND YOU TRUST: Designed by K&H with over 25 years of experience in creating safe, innovative, quality products for pets, ensuring safe reliability and top-tier craftsmanship for pet parents HOW TO TEST: K&H heated products are designed to warm to max temperature when in use by your pet; Please refer to our how to test image or video to accurately test to ensure it is working