UpperSpace Corner Shelf Makes your small containers instantly visible and easily accessible by utilizing the upper space in your cabinets Installs in any cabinet that is at least 10 wide and 10 deep. Increases valuable cabinet space by freeing up shelf space. Utilizes the existing shelf support system found in most of todays cabinets that allow shelving to be adjustable. No holes in your cabinets? No problem. The UpperSpace Shelf may be installed using special 3M mounting tape provided for all brackets and provided pins.