Rntraveler

I am wondering what the "fine tip" that I see used sometimes on Elmer's glue, used for basting or other quilting uses?
I went to Michael's today and they had no idea what I was looking for (guess I didn't either).

What is it and where do I find it as I would love to try this "glue" method for binding and it looks like it would put a fine line down..

Thanks!