The aluminum bulkheads are created to join the low framework dish and battery pack tray together in a durable, effective, and lightweight design. The bulkheads provide optimal tightness, flex and handling characteristics, even if using harder foam tires. The bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to provide you with the lightest & strongest framework the automobile. The bulkheads function a striking titanium color.