Briefcases are box-shaped bags that have handles (may have on one side or two) and may have shoulder straps. Briefcases are most often known for their use by professionals to carry important documents. Briefcases may also be designed to carry laptop computers.
About Metal:
Metal is a strong, shiny material that can be molded and shaped in any way and is often used as a decorative ornament in garments and footwear.