This 1941 Replica Brushed Chrome Zippo lighter has several distinctive characteristics that distinguish the 1941 Replica from today's familiar Zippo windproof lighter. The 1941 case has flat planes with sharper, less rounded edges where the front and back surfaces meet the sides. The lid and the bottom are joined with a four-barrel hinge, just as they were on the original 1941 design. A must for those that wish to travel back in time. It comes packaged in an environmentally friendly gift box with a lifetime guarantee. For optimal performance, use with Zippo premium lighter fluid.