Caffeine Beaker Mug, Caffeine Molecule Mug - Chemistry Mug 16 oz Borosilicate Glass Coffee Mugs with Handle and Measuring for Coffee, Latte, Tea or Hot and Cold Beverage, Tea Coffee Mug by Amugo

Nice borosilicate cup/mug and as expected very thin glass and almost weightless, but delicate and not for people with big fingers. Update: I used this cup 4 times and was very careful with it and I just noticed it was leaking out the bottom. Coffee kept showing up on the countertop and after transferring to another cup I turned the is cup over and sure enough a small crack. This is absurd! I will attempt to get a refund.

I got this for a nerdy friend of mine....he loves it! He was even joking that he doesn't need to buy measuring cups since it comes with the ml on the side.

Great idea for a mug, loved it when it arrived ....only to find the decals came off after a few washes leaving us with a plain glass. Terrible : disappointed beyond measure.

Le encantó a mi esposa y resiste bien

Update: why does it have to be so thin? A little too delicate and it's broken within a few months. So my favorite cup now is actually a Mason jar type with a handle. I like the glass because I enjoy seeing the way light is diffused and also how dark my coffee is. And it's thick and sturdy!! _____________ I love drinking my coffee out of this. Absolutely my favorite! It is a bit thin and sometimes I'm scared of it breaking but it's borosilicate and should be pretty durable. I do like the caffeine molecule on one side as well as knowing exactly how much coffee I'm drinking with the measurements on the other.