A hard bait rig is a fishing setup that combines hard baits (artificial lures made of hard materials like plastic, wood, or metal, such as minnows, poppers, and crankbaits) with components like hooks, fishing lines, and swivels. Its core function is to mimic the shape and movement of prey such as small fish and insects, luring predatory fish like bass and pike to attack. Widely used in freshwater and saltwater lure fishing, it is often paired with techniques like casting and jerking to enhance its fish-attracting effect.