I make mine as I need them, you can put them on the line after you have everything rigged up, put your weights and everything on then take the line and lay it across your knee, you want to put the bobber stop above your plastic bead, I use Mason cord like the brick layers use, take the cord and make a simple loop then pinch it against the line take one of the ends sticking out and run it thru the loop seven to ten times then pull the two ends away from each other and your done, whats nice is you don't have to cut the line to get this bobber stop on you rig, hope this helps you, i thought I had a tutorial on my website about it I'll look again ...............Doc