Our Big Wheels Rolling Photo Backpacks, Models 697 and 698, combine the advantages of a wheeled camera bag and a photographer's backpack in a unique and highly protective camera case. Designed for photographers who must carry a lot of equipment in diverse situations, the Big Wheels Rolling Photo Backpacks have oversized, ball-bearing wheels and telescoping handles for easy travel, but when a flight of stairs is encountered, they quickly convert to a backpack via a hidden Tuck-A-Way™ backpack harness. The front pocket of each is foam padded for accessories, files or even a notebook computer like Apple¹s PowerBook G3, G4 or others as large as 12 ¾" x 10 ½" x 2". Our QuickClip™ tripod attachment holds professional sized tripods balanced and centered when not in use.