I use Roxanne #10 and #11 betweens for quilting. The only threaders I can get to work with the eyes on those needles are the Roxanne threaders. Reasonable so I'm not complaining. I used the desktop Clover threader with the Roxannes as well as other general purpose sewing needles (to complete bindings) with absolutely no luck. If yours works, enjoy! Mine, not so much.