Review on ☕️ Coffee Mug Warmer: Auto Shut Off, Smart Temp Settings for Home Office Desk - Electric Beverage Tea Water Milk Warmer for All Cups and Mugs + Heating Plate for Candle Wax by Luz Rojas

This works very well for my oversized mug, this mug does not have a flat bottom and is not glass as recommended but it will keep you warm all day! (Remember, this thing is designed to keep the water warm, so the water needs to be warm to begin with, don't use it as a water heater.) (Update: After a few days of use, I discovered that this thing actually can be used as a heater! Until you use the recommended mug. The one in my photo was too thick and big to get warm. I've tried glass, cold water might actually get hot!)