I haven't seen it, but then again.......I'm on a pebble. lol
I just buy the cheapie ones. I actually have one that is about 5 yrs old that works wonders...when I can find it. I put a piece of tape on it so I know which one it is. Other than that, I'll buy them 3 at a time....I lose them alot in my sewing room....Love the little ones......