Approved for indoor or outdoor use, Allied Precision Pet Heated Mats are made of durable, weather-resistant plastic with welded seams for added safety and longer life. This rug includes a machine washable fleece cover. Allied Precision's unique, patented design allows air to circulate completely around the heating element to eliminate "hot spots" common with other plastic mats. These mats are designed for use in kennels, garages, kennels or anywhere your pet needs extra warmth. • Easy to clean plastic • Use anywhere your pet needs extra warmth • Thermostat controlled • Approved for outdoor use • Rain, snow and UV resistant • Patented Air-Flow Design to eliminate hot spots • Includes a free 100W fleece cover