When new(or if you are gentle) you can even make a pretty fine line also.

Puts down a nice dark line and the tip is durable enough for compressed felt.

Write very smoothly and gives a steady line

This marker is a nice choice, thick lines, and easy to handle, It seems to work well with all types of project ideas.

The tip is pretty nice wide chisel, seems pretty sturdy and cuts a clean line

Puts down a nice dark line and the tip is durable enough for compressed felt.

If you need a big marker the Sharpie Magnum is the way to go, clean lines, and permanent ink help this marker last wherever you tend to put .

It totally does its job, giving a very bright thick line and it's sharp, so you can also get a thin line if you want