Roadmaster DHM140 14oz Electronic Travel Cup Warmer (Silver/Black) - Keep Your Drink Deliciously Hot! Roadmaster DHM140 14oz Electronic Travel Cup Warmer General Features: Keep Your Drink Deliciously Hot! Silver and Black color scheme (black handle and lid) Travel Mug holds up to 14 ounces Stainless steel exterior Conveniently plugs into 12V DC cigarette lighter in car and boat Plugs into cigarette lighter to keep liquid warm