480ml Glass Mug Sets(2 Pack), 16oz Flat Bottom Glass Coffee Mugs, Heat-resistant, Large Clear Glass cup with handle for Beverages, Tea, Cappuccino, Latte, Espresso, Juice...

Nobody seems to mention this, which is the main reason I selected this product: unlike other mugs that have a ridge around the bottom, the relatively flat bottom on these mugs is much better at conducting the heat from my coffee warmer hotplate, so I don't need to keep it covered any more and it maintains a constant temperature. The perfect volume, light weight and nicely shaped handle are additional benefits. I plan to buy more.

Looked for flat bottom cups for ages, even tried to grind raised ring bottoms so mugs would sit in contact with warmer. Attractive, useful, & nice size.

These glass mugs were replacements for ones I had for a long time. They are not as solid as the others but as I said above they are good enough.

States that these glass mugs can be used on a cup warmer however they are so incredibly thin glass. I would be afraid to do that so I’m returning them.

Works great with on coffee warmers because of the flat bottom. Attractive, lightweight, perfect size mug highly recommended.

At first glance these look like beer mugs however they are much smaller than beer mugs, and definitely more of a coffee cup size. The glass is very thin and feels like it could break really easily, I have a feeling these won't last long in our house. They are perfect for a project as the clearness and size would make a fun gift, you could add a vinyl sticker, like something made on a cricuit.

I love these mugs! There are light weight and elegant looking. It keeps my coffee hotter longer!

These are both light and sturdy. You can put four fingers through the handle.