Check the listing for details. Gibraltar Convertible Hardware Backpack Bag Black LN. Condition: Pre-owned. Listed at 102.07 USD. Gibraltar's Convertible Hardware Backpack Bag is designed for players who are looking to lighten their load and free up their hands. This hand held hardware bag can be converted to a backpack, or shoulder carry bag with the change of a strap. 34 inch. x 12 inch. x 11 inch., it is pre-formed and made with high test nylon. Sandwiched between the outer nylon and padded interior, ABS material forms the shape of the bag, creating structure, reinforcement, and durability. This is a great bag for players gigging with light to medium weight hardware.