I am not sure I can but I will try. If you are cheap, you can use a narrow gauge rubber band instead of a bobber stop that you buy in the store. You loop the rubber band around the line and through itself and tighten it as best you can. I carry nail clippers for cutting line. Cut the rubber band off close and, viola!, bobber stop. Downside is you can not adjust it as many times as a regular bobber stop because it will fall off sooner or later. But, it is better than having to cut the line, put on a new bobber stop, thread the beads, bobber etc. and retie to your swivel or whatever if you have your bobber stop slipping and have not left enough spare thread to grab onto and re-tighten. I hope that makes sense. I usually keep a couple of rubber bands on hand just in case.