Diameter of 0.3 inches (7.5mm) can hold most cables, such as phone charging cables, USB cords, HDMI thick cables, computer power cords, etc. Besides that, the slot diameter of 7.5mm can perfectly hold a charging head as small as the Phone original silicone charging cable without falling off, and the held cable can be pulled out smoothly for use. The unique magnetic opening and closing cable clip design allows you to place and remove cables with only one hand. The Upgraded Acrylic Adhesive sticky pad allows the cable organizer to stick firmly to almost any flat& clean surface, such as wooden tables, glass, ceramic tiles, etc. Meanwhile, the transparent removable acrylic adhesive pad will not damage your desktop, wall, no residue left after removal.