Although labeled as a tool for trumpets, I haven't had much use for this rod so far. Why? It's too short for most parts of the trumpet that it could clean, while the end is too thick. It doesn't fit in some openings, or gets easily stuck in those where it fits, if it holds any kind of cloth.
If you intend to buy and use it nonetheless, stick a small piece of sponge on the tip might be a better option than a cloth. Maybe that's the idea in the first place? But if the sponge loosens, it might get stuck in your trumpet, which we don't want.