Kosdeg Copper Cups - 12 Oz set of 4 - A Unique Way To Enjoy Wine - The Perfect Pure Copper Tumbler for Water - Copper Drinking Cups Better Than Glasses or Plastic - Moscow Mule Copper Cup For Drinking

I just received these today, and they are beautiful. I cannot speak to tarnishing, but they definitely are 12 oz cups, though they appear to be smaller, probably due to the style. How to measure? Fill it to the top and pour into a marked measuring cup. Twelve ounces. I bought them for the bathroom. Tomorrow, I shall receive the matching pitcher. My plan is to keep the pitcher, filled with water, on the table with two of the "glasses" to drink throughout the day.

We bought these cups for outdoor dining - we needed something unbreakable but wanted to avoid plastic. We are very happy with the purchase. There cups are beautiful, elegant and have a lovely weight in your hand. We've experienced some very mild tarnishing on the interior on some cups since we started using them (they arrived about 3 weeks ago), but this is to be expected and is not in any way objectionable. The exterior has maintained it copper shine beautifully (we do expect some patina to develop over time as is normal with copper). We hand wash them with regular dish soap.

Perfect size for the bathroom and very easy to clean.

These cups are nice but very very small. As you can see they are much smaller than a normal size coffee cup so in my opinion overpriced. They would make nice whiskey cups but I will most likely be returning them since I don’t drink alcohol.

Good

Tarnished and green/brown within 1 day. We have purchased this and the travel tumbler and this product turned green and brown after one use while my bottle has never had this issue. Not sure what the difference is but would not recommend, even though it's part of the process I feel it should take longer than a day to turn colors.

They seem like OK quality but they are definitely only 8oz. Returned due to false advertising.

Got these. They are beautiful. I got instructions online for use and cleaning. It says use for drinking ONLY WATER in it and water w dab of soap can be used to clean. . HAND WASH ONLY. And you must DRY IMMEDIATELY! NO DISHWASHER! It also said BEFORE EACH use— fill with water and let sit for 8 hrs and THEN You DRINK IT. To get most copper intake ….