Breeders pet owners and veterinarians have been using lectro-kennels to warm pet for more than 40 years.","Sleek smooth design is now more comfortable and durable than ever.","Constructed of rugged abs plastic with a steel wrapped cord the lectro-kennel can lie flat on the doghouse floor.","An internal thermostat heats to complement the body temperature range of your pet.","Comes with a free removable washable fleece cover. For indoor or outdoor use.","One year limited warranty.