It does exactly what it promises. The storage case mentioned in the product title is a pouch.

They are not as good as water ice packs at cooling something, but I think that's obvious, they couldn't be. What they do, they do well.

They don't cool as I expected. Better regular ice cubes. Otherwise, you have to put them all in to cool. They don't work for whiskey, though.

I have to say that I expected them to come loose, but the packaging also includes a beautiful black bag! Now, onto the boring part. 6 cubes are enough for one person, to start and rinse the first 3-4 cubes and then use the rest, I mean, from there on, multiple packs of 6 will be needed if we're talking about more people. The cubes are small, so obviously we're not talking about a 1-1 ratio with water cubes, especially if you're used to the large cubes of the ice cube tray (the ones that usually come in sets of 10, you fill them with water and then throw them away). The only thing to note besides the quantity is the fact that they are heavy, which means it's difficult to stir in the glass (even with a metal straw) and be careful not to break them, although I doubt anything will happen to them, they are extremely durable. Also, do not store them in plastic containers while in the freezer, they take on a plastic taste.

Update 6/6/2023
Well, after a month of use, in order to freeze the espresso well for frappé, you either need quite a few metal ice cubes or you need to first lower the temperature with regular ice cubes and then add the metal ones. For beverages that are at room temperature, like water or soft drinks that you just got, it does a good job.

For one person, one set is enough, otherwise you need two. I have one set at home and one for work.

The product is very good for what it does. One package is for one person. Personally, I combine them with hot water and the result is amazing.

I was very satisfied, they last a long time without changing the ratio in what you drink. "Luxury type" maybe, but at a reasonable cost that you give once. Ideal for a gift.

The metal ice cubes give a different sensation to the drink. Especially for a whiskey that you want (if you want) from start to finish to not get watered down at all but to be cold, the difference is huge. With water ice cubes, after a while it gets watered down and the feeling of refinement is lost. I recommend having at least two sets, with just one you can only have a drink for two people and then you have to put them back in the freezer. Great purchase, I highly recommend them.

Excellent for whiskey, etc. They are not suitable for ouzo - tsipouro. They last for only one drink. After washing, put them back in the freezer

Yes, it is much better than water ice cubes, and because I heard what others were saying, I bought 24 instead of just 6. You need about 6 to 7 for a large glass of water and they last a little less than water ice cubes, but they freeze quickly and don't annoy you. Yes, yes, they are also perfect!!! NO!! they are not made for cooling hot drinks, they are not suitable for hot beverages, they are for room temperature in cold or for cold to stay cold

Satisfactory for quantities up to two fingers, otherwise they do not solve the problem, personally I use them to prevent the iced coffee from getting watery.

To avoid any misconceptions, under no circumstances are they compared to regular ice cubes. They somewhat cool down the drink, only up to the height of the glass where the "ice cubes" are located. Their duration is about half an hour. In short, wasted money.