This clip on cable organizer is useful if you change cabling often on wire rack shelving, and you want to cut down on zip ties. It clips onto 25mm posts.

The rib was intended to hold onto the grooves, but it doesn't seem to have an effect. The tension does all the work.

I've included STEP and Fusion 360 files, so you can adapt the clip to suit your needs.

Recommended material: PETG