The FC-3 Filter Case is an accordion style case designed to hold five 4 inch square or 4.5" round filters in individual padded sections. The case is cinched securely with an expandable strap. The handy pocket across the front has room for filter tissues and a small bottle of cleaner. It has a see-through window on top for quick reference notes.The FC-3 comes with belt loop for waist carrying or on the VB-10 Video Belt. The optional FC-3P can add 1 or 2 sections to the case.Carries and protects (5) 4.0" square or 4.5" round filters in padded sectionsA clear vinyl window on top allows you to check reference notesA pocket across the front has room for filter tissues and a small bottle of cleaner.