Vertebrae Cable Management - Clamping to the edge of your desktop, this product is designed to protect and organize AV and power cords. Great for height adjustable or stationary desk systems. Block System - Features snap-together interlink blocks with 5 inch diameter steel base plate for stability. The 4-way channel entry design makes it easy to slip cables in at any angle. Heavy Duty C-clamp - Easily clamps to the back of your desk with a small footprint. No drilling required. Clamp padding protects your table surface from scuffs and scratches. Desk to Floor - The 4 foot cable management strip ensures that your cords will be kept organized from your work surface to the floor. Stay Organized - Keeping your workspace clean and tidy creates a non-cluttered environment that encourages focus and concentration.