Tush Knitting Needles Rails

I'd like to fix my spools to the table so that they would not move, you know, sometimes it just happens…

I used M5x30mm screws and 2 knitting needles to implement the rails. I modified the TUSH so that it anchors to the rails and can slide if necessary without too much effort. 

If you want you can close the holes so that you won't see the spears.

I've printed them in galaxy black PETG.