HEATED 20 BIRD BATH WITH STAND THIS PLASTIC BIRD BATH IS DESIGNED TO KEEP WATER ICE FREE ALL WINTER LONG. THE UNIT IS THERMOSTATICALLY CONTROLLED AND 20 IN DIAMETER. A STURDY WEATHERPROOF STAND IS INCLUDED CAN ALSO BE EASILY MOUNTER TO A WOODEN DECK RAIL. Ingredients: PLASTIC WITH A METAL STAND 150WATTS 120 VOULTS