Nail weights are small, cylindrical sinkers designed to be inserted into soft plastic baits to add subtle weight without changing their natural profile. Commonly used in bass fishing, they improve casting distance, help control sink rate, and enhance presentation on finesse rigs like wacky or neko rigs. By adding just the right amount of balance, nail weights allow your bait to fall more naturally and stay in the strike zone longer, making them ideal for targeting pressured or finicky bass.