The Lectro-Kennel has been warming pets for more than 40 years. It has just recently been redesigned to be more comfortable and durable than ever. The product is constructed of ABS plastic with a cord wrapped in steel to protect against problematic chewing. This heating pad is intended to be laid out onto the ground, but can be attached to dog house walls as well. The thermostat function allows pet owners to keep the temperature of the heated bed at a comfortable 100 degrees when in use. A washable warm fleece cover is included, and this heating bed can be used indoors or outdoors.