Polly Heaters are molded onto a metal tube that can be fastened to any 7/8 handlebar with sheet metal screws for easy removal. High-Low-Off switch (30 & 20 watts). Two year guarantee from Polly Heater. Polly handlebar heaters warm the hands in the coldest weather. Can be installed in minutes to any hollow handlebar with 12 volt/3 amp system. Original equipment on Arctic Cat no. 0636-058. Polly Heaters are molded onto a metal tube that can be fastened to any 7/8 handlebar with sheet metal screws for easy removal. High-Low-Off switch (30 & 20 watts). Two year guarantee from Polly Heater.