These 4" offset bars are a go-to wire management solution for many dealers. They provide a simple way to get wires where they need to be - and keep them there. Conveniently sold in packs of 10.
Strong™ Rack Round Tie Bar for Anywhere Wire Management
These 4" offset bars are a go-to wire management solution for many dealers. They provide a simple way to get wires where they need to be - and keep them there. Conveniently sold in packs of 10.
Versatile
Some more useful ideas are using it to zip tie horizontal wire runs or as strain relief of heavy cables. You can mount it inverted so wires are kept inside the rack, even screw it directly to the wall.
Stackable
Another creative application in a rack is to stack two bars on top of each other going opposite directions. The resulting channel easily holds wires as you work on the system.