The equip® Cable Spine routes cables from floor to desk and provides mechanical protection and strain relief. The Vertical Cable Spine structure allows for power- and data-cable segregation. • Snap-together interlink blocks with 7"diameter steel base plate.• Come with top hooking element to screw under top surface.• Snap-together interlink blocks with 7"diameter steel base plate• Come with top hooking element to screw under top surface