Give your dog a constant cool spot in summer, relief from furnace and fireplace heat in winter, and cushiony support for vulnerable joints all year. Non-electric, non-toxic, paw-puncture proof, and easy to clean. Fleas hate the cool environment but dogs love it. Use indoors, outside (away from direct sunlight), and in crate for travel. Eases heat discomfort, joint problems, skin disorders, hip problems, and more. 20 mil thick outer membrane is tough enough to park a truck on and not pop! As tough as this non-toxic membrane is, however, it will not harm your dog should the bed be chewed* by accident. Made in the USA and guaranteed for 2 years. Must be filled with water. *Not recommended for puppies or adult dogs that chew objects.