Clamp-on Power Strip Tray: Holds your surge protector off the floor, providing easy under-desk cable access. Heavy-duty dual C-clamps secure to desks up to 2' thick with simple hand tightening and include padding to protect your table from scratches Hidden Cable Management: Closed back section completely hides what is held behind it, keeping your power strip out of sight for a clean and organized appearance. Sturdy steel design supports up to 11 lbs with ease