The Matthews Studio Equipment 48" x 48" Flag Bag is made of 1000 denier polyester fabric exterior shell with a heavy duty zippered closure and carrying handles. The inside of the Matthews Studio Equipment 49" x 48" Flag Bag is lined with a corrugated plastic to protect the contents and provide stiffness. The interior corrugated liner is replaceable and the bag is provided with one divider of the same material. Additional dividers are available. The Matthews Studio Equipment 48" X 48" Flag Bag will hold eight to ten Flags each and is easily hung on a C-Stand for convenient staging while you're rolling.