The Needle Beetle needle selector selects needles and pushes them in to "D" position so that you can then perform Tuck, Slip, Lace, Fairisle, etc. You hand select the first 8 needles in to the arrangement you want, then push the Needle Beetle across the needle bed and it will select the rest of the needles.
It is designed for 6.5mm LK-150, LK-140, as well as the 9mm LK-100/Zippy 90.

This device is made in the us and sold by Kris Krafter