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 Skull:
In the past few years we have seen skull patterns adorn all types of clothing - from t-shirts to sneakers, and belts to watches. But skull patterns have been culturally significant since the eighteenth century!
Pirate ships flew a Jolly Roger flag with skulls and crossbones, to frighten their victims into an early surrender. With their prominence in so many designers' current lines, you don't have to fear these fashionable skulls anymore.