Reviews (137)

Got this as a gift for my Uncle George. The funny thing is, my Grandma loves it also. She likes to keep his coffee mug full and hot (a very doting mama). With this she can see at a glance how much hot coffee he has, without getting up to walk by and check. A great mug to use for guests!

I purchased this for Fathers Day this year. I have yet to see what the reaction is but I'm sure my dad will love it. He's always complaining his cup never gets filled, now we'll have proof! Awesome gift!

It is amazing！When I poured hot water into the cup， it quickly changed.. My friend and I really love it！！ Nice product！！

very good. I really liked the product. I loved it. arrived in good condition both the packaging and the product. is very useful. is different.

holds coffee fine- only spills coffee when tipped to far to the side. these are the last seven words required

fill it up with bunch of candies and it might become a great present for a fellow-buddy. cute cup! ill get two more later on! thank you! :)

so cute. gave for a gift, and he loved it. a little something extra to add to a coffee gift.

I bought this for my friend since she has recently become obsessed with coffee. She claims that it works great! ^_^

HAND WASH ONLY! Super cute, but the decal didn't last long. Gave this mug as a gift to my mom, and she ran it through the dishwasher not realizing it was handwash. User error, I suppose.

I was gonna buy some of the more extravagant temperature changing mug thingys, but those didn't work that well. This works as intended, very well. However I do wish the cup was bigger.

Really cool for a gift or to use yourself, have been with it for over 2 months now, easy to clean and works as expected

Works great! Only thing that needs to be made a bit clearer is that you CAN NOT machine wash these! Hand wash only people lol Overall the coolest coffee cup I've bought to date

It is a bit smaller than a regular coffee which was what I expected, but it is still an awesome product.

not so dishwasher safe, but is still a good mug

This is a very cute idea. User beware of the paint coming off. I hand washed this mug like the instructions say, but when I grabbed the mug out of the water the decal started to peel. It still works fine.

It takes about a minute to reflect changes in volume, but otherwise it is exactly as described. Good deal for the price.

The cup is a bit small but the gauge works. It makes a great novelty gift for any vehicle enthusiast.

I bought this cup as a gift for a coworker. She uses it everyday and it wakes up every morning. Very cute and definitely does what it says it does!

I bought this mug for my sister in law's husband because he's always driving with an almost empty car. I thought it was a nice fun gift for him and he liked it. I gave it 4 stars because I think it's kind of small.

I made a gift to my father and I liked a lot is very nice is that changes appearance with temperature, excellent