Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: How much does each mug weigh?
Document: I bought these to drink coffee out of and I have ended up using them for a lot more. I put yogurt and granola in them. Use them for hot and cold beverages (dunking Oreos in these things filled with milk is awesome!). The size is what is so great about them. You have a mug that is a pint. I use these much more that I had originally intended and so for that they get 5 starts. Sturdy thick glass mugs. Highly recommend!
I ordered it YESTERDAY and got them already TODAY!. mind you, i ordered this for my manager and she absolutely loved them! Thank you so much for such a fast and awesome delivery
You definitely have a seam on the glass. I cannot get a full 17 oz in them, 16 oz is pretty much at the rim. i will be looking for a 20 oz.
They are large mugs, look nice, have a flat bottom so that they can sit on a mug warmer (or a candle warmer) and perfectly clear. They are thick enough they don't break easily and have a comfortable handle. It's just perfect.
My husband and I both enjoy these mugs very much. I looked for quite a while for just the right mugs to suit my needs and these fit the bill very nicely. Aside from being attractive looking, they are of good quality, are large in size, and they are very thick and sturdy. My husband is kind of a bull in a china shop, but we never worry about him breaking these.
{I actually got it because I missed getting the clear Starbucks mug for sale last season and only wanted one mug to add to my personal collection. But, you really do pay for quality and I guess that's what you end up with when you get products from a fancily packaged store called the great indoors that's run by the same people as Kmart.
Totally glad I made this purchase. I read the reviews and debated whether the 'seam' in the manufacturing would make a difference to my ladies having soup. The mugs arrived today. The 'seam' is barely noticeable and will not matter in the least to anyone except maybe a very picky few. None of my ladies will mind a bit, if they notice at all. Nice heft, and large enough for a good mug full.
I am not sure was it because of the use of dishwasher to clean it or those 2 mugs weren't good quality? the other 4 seems to be OK for now and I still love to drink my coffee and tea from them.UPDATE 1 year later - had to throw away the last mug - they all chipped or cracked! I must say that our family is not the glass "breaking' kind and we still have glass mugs from different brands that we used for years but these Libbey mugs UNFORTUNALETY did not last.
They stain a but but since I clean them well every day the tea stain comes off.These are legit mugs. I believe a lot of restaurants use Libby products because they're durable.
They look nice, got them to see what color my tea looks like from loose leafs. Makes me feel good seeing the color i drink, how it smells and taste. Adds that comfy feeling. Only 1 had a small air bubble on a side in between the thick layer. Hopefully it doesnt crack with hot water. Even if it does, i am going to enjoy the other 5 :).I would recommend.
Answer: This mug is comparable to the traditionally shaped mugs that hold the same 17 oz.  What is different, is the bowl shape that feels comfortable.  Very versatile mug that can be used for coffee, fruit and yogurt, soups, or desserts.  Love them!