Car Heating Cup with Built in Mug 12V24V Universal Auto Heating and Thermal Insulation, 1500ml capacity: Large size for extended use., Auto heating: Keeps drinks warm while driving., Built in mug: theheavycup sent me this and honestly this is actually the worlds heaviest mug. This Mfer is actually heavy as hell. Like actually. If you want a heavy mugwelp. This is it Elanze Designs Color Pop Yellow Black Exterior 16 ounce Glossy Ceramic Mugs Matching Set of 4 : Target 8 Best Glass Coffee Mugs, Tested and Reviewed Brew To A Tea Double Wall Glass Coffee Mugs, 16 oz, Set of 4, Clear, Brew to a Tea