Sturdy plastic, economical. Depending on your needs (1-2 people or a large quantity) you get 1x2 and 1x4 respectively. Practical, fast and of good quality. At the same time, you can control the parameters (coffee grind, water temperature, etc.) And made in Germany.

Easy to use, doesn't break if you drop it, easy to wash, and generally does its job perfectly!

The best thing for someone who wants to make French coffee at home and outside the house without needing a machine

Just what you need for its price. However, there is no indication of suitability of the (plastic) material in high temperatures.

Super lightweight, fragile, and works perfectly making great filter coffee.
Works fine with the typical small 2-4 filters from the supermarket.
Easily makes two cups of coffee. I think the larger filter is unnecessary.
We put the filter and rinse it with tap water. Then, we add the coffee and add a little hot water to activate the coffee flavors. After a minute, we add the rest of the hot water.
Great tool!

Very good plastic quality. Small diameter "collar" that creates instability when "sitting" in large cups

Excellent coffee filter case. It does the job well with so little money.. I might get another one.

It worked better than anything I have tried so far for quick filter coffee! Completely value for money!