Its major drawback is that it is impossible not to spill water when transferring the ice tray to the freezer, due to the high flexibility of the silicone. The only solution I found is, after placing the ice tray on a small tray, to fill it afterwards and put it in the freezer together with the tray. Other than that, the shape of the ice cubes is ideal for thermos bottles.

Some complain about how elastic it is. Personally, this worked for me. It only loses points for needing constant washing due to the material, and ESPECIALLY if you have hard water. It will constantly leave stains. Other than that, it does its job as it should.

The ice cubes come out very easily, be careful when transporting, ideally hold it from the opposite ends (the rails horizontally between your hands) so that there is a little balance.

Quality product but needs filling inside the freezer to prevent it from moving. It is not stable at all and spills easily if you lift it and try to move and place it in the freezer.

It is ideal for ice cubes for a hot bottle.

A major drawback is that it easily bends, making it very difficult to transport it full to the freezer. I have to transfer it onto a plastic lid to keep the container from bending. I believe it would need its own base accessory for transportation (-1 star for this).

To release them one by one (as many as needed), it requires some pressure, gripping, and pulling.

The ice cubes are quite far apart and large, I would say, and I have the impression that they melt relatively faster. So I think the liquid in which they are placed freezes faster, but they don't last as long as equivalent classic large ice cubes with a smaller surface area. I combine them with a large ice cube tray.

Also, there are only 7, which for me means that with 3 uses (2-3 ice cubes at a time), it needs to be refilled and wait again (meaning it is not sufficient for many people - a family).

In any case, it is something, if not so practical, quite unique!