These are great. If you have wanted to do wire wrapping, but are intimidated or frustrated, then this will make all the difference. These make a fold in the half-round wire that fits exactly around the square wire, saving you the hassle of taping and trying to get a good fit. Use with 20 and 21 gauge square wire. Check out the inventor's video on wire wrapping - I think you'll find his relaxed approach refreshing! Wire Wrapped Stone Setting by Wyatt White If you want a shorter video, try this one.