an experienced fisherman holds a long, thin fishing rod made of flexible material above the calm water. He casts his line with a smooth sweeping motion as the rod bends gracefully. The thin straight bar extends far out over the lake as it guides the fishing line. The rod's length and straightness help him reach the deeper water where fish are swimming. A young child sits nearby watching with excitement as the rod suddenly bends when a fish takes the bait. Other anglers on the dock prepare their own long straight fishing equipment. a thin straight bar being used as an essential fishing tool