The Strike King Tour Grade Carolina Rig Weights are barrel-shaped weights designed specifically for Carolina rigging. our premium tungsten composition provides increased density (hardness), which translates to an increased sensitivity, allowing anglers to detect light bites, and subtle changes in bottom composition. Strike King Tour Grade Tungsten Carolina Rig Weights are internally polished to eliminate line fray, and precisely shaped for less hang ups and to also help minimize damage to glass beads.